LegalizeCommission Implementing Regulation (EU) 2025/1906 of 12 September 2025 granting a Union authorisation for the biocidal product family GA 24-50 BPF in accordance with Regulation (EU) No 528/2012 of the European Parliament and of the Council
This is the act as published. Later amendments are not folded into the text below: each one is a separate act in this repository and an entry in this law's history.
| Hazard statements | H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage. H317: May cause an allergic skin reaction. H332: Harmful if inhaled. H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled. H412: Harmful to aquatic life with long lasting effects. EUH071: Corrosive to the respiratory tract. |
| Precautionary statements | P260: Do not breathe spray. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves. P273: Avoid release to the environment. P284: [In case of inadequate ventilation] wear respiratory protection. P301+P310: IF SWALLOWED: Immediately call a POISON CENTER. P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower]. P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing. P310: Immediately call a POISON CENTER. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER. P501: Dispose of contents to a hazardous waste disposal service in accordance with the statutory regulations. P501: Dispose of container to a hazardous waste disposal service in accordance with the statutory regulations. |
4. AUTHORISED USE(S) OF THE META SPC
4.1. Use description
Table 1
Short-term preservation of the industrial process, i.e. preservation during the production and/or storage of latexes (one week) and waterborne paints (three weeks) in the plant prior to final packaging
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: yeasts Development stage: no data Scientific name: no data Common name: fungi Development stage: no data |
| Field(s) of use | Indoor use Short-term efficacy to maintain plant hygiene and prevent intermediate production mixtures of latexes and water-borne paints from spoiling. |
| Application method(s) | Method: closed system Detailed description: The biocidal products are stored either in a single large tank or in several tanks, and dosed into raw materials or intermediate mixtures during the production process. Dose the biocidal product to the end use fluid at a point to ensure adequate mixing using automated or manual metering. |
| Application rate(s) and frequency | Application Rate: Paints: 0,1 to 0,95 g glutaraldehyde per kg of matrix for preventive use. Paints: 0,1 to 0,95 g glutaraldehyde per kg of matrix with a contact time of 7 days for curative use. Latexes: 0,1 to 0,6 g glutaraldehyde per kg of matrix for preventive use. Latexes: 0,1 to 0,6 g glutaraldehyde per kg of matrix with a contact time of 7 days for curative use. Number and timing of application: Once per production run of the product to preserve. Glutaraldehyde provides immediate efficacy and short-term preservation up to three weeks for paints and one week for latexes. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.1.1. Use-specific instructions for use
Dose the biocidal product to the end use fluid at a point to ensure adequate mixing, using automated or manual metering.
Paints: 0,1 to 0,95 g glutaraldehyde per kg of matrix.
Latexes: 0,1 to 0,6 g glutaraldehyde per kg of matrix.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.1.2. Use-specific risk mitigation measures
The product must not be added to paints and coatings which are applied by spraying.
See also the general directions for use.
4.1.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.1.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.1.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.2. Use description
Table 2
Preservation of washing and cleaning fluids.
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: yeasts Development stage: no data Scientific name: no data Common name: fungi Development stage: no data |
| Field(s) of use | Indoor use Preservation of washing and cleaning fluids (i.e. hard surface cleaners (all-purpose cleaners), hand dish washing products, fabric softeners and laundry detergents). |
| Application method(s) | Method: closed system Detailed description: Dose the biocidal product to the end use fluid at a point to ensure adequate mixing using automated or manual metering. |
| Application rate(s) and frequency | Application Rate: 0,3 to 0,95 g glutaraldehyde per 1 kg of the final product for preventive use against bacteria. 0,2 to 0,95 g glutaraldehyde per 1 kg of the final product for preventive use against yeasts and fungi. 0,3 to 0,95 g glutaraldehyde per 1 kg of the final product with a contact time of 7 days for curative use against bacteria. 0,2 to 0,95 g glutaraldehyde per 1 kg of the final product with a contact time of 7 days for curative use against yeasts and fungi. Number and timing of application: Once per production run of the product to preserve. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.2.1. Use-specific instructions for use
Dose the biocidal product to the end use fluid at a point to ensure adequate mixing using automated or manual metering.
Dose:
Bacteria: 0,3 to 0,95 g glutaraldehyde per 1 kg of the final product.
Yeasts & Fungi: 0,2 to 0,95 g glutaraldehyde per 1 kg of the final product.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.2.2. Use-specific risk mitigation measures
See general directions for use.
4.2.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.2.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.2.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.3. Use description
Table 3
Preservation of pigment pastes/mineral slurries to colour a wide variety of products (e.g. textiles, inks, paints, paper)
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Indoor use Pigment pastes and mineral slurries used to colour a wide variety of products (e.g. textiles (carpet fibres, carpet backing, canvas, cordage, drapes and shower curtains), inks, paints, paper). |
| Application method(s) | Method: closed system Detailed description: Good mixing and uniform distribution of the biocidal product should be ensured using automated or manual metering. Pigment pastes are readily incorporated by low energy mixing equipment requiring no additional dispersion. |
| Application rate(s) and frequency | Application Rate: 0,25 to 0,5 g glutaraldehyde per kg of the pigment paste/mineral slurry for preventive use. 0,25 to 0,5 g glutaraldehyde per kg of the pigment paste/mineral slurry with a contact time of 2 days for curative use. Number and timing of application: Once per production run of the product to preserve. Glutaraldehyde provides immediate efficacy and prevents re-growth for a period up to 3 weeks. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.3.1. Use-specific instructions for use
Dose the biocidal product to the pigment paste or mineral slurry at a point to ensure adequate mixing using automated or manual metering.
Dose 0,25 to 0,5 g glutaraldehyde per kg of the pigment paste/mineral slurry.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.3.2. Use-specific risk mitigation measures
See general directions for use.
4.3.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.3.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.3.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.4. Use description
Table 4
Preservation of additives for the production of paper
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: yeasts Development stage: no data Scientific name: no data Common name: fungi Development stage: no data |
| Field(s) of use | Indoor use Preservation of paper additives used in paper mills. |
| Application method(s) | Method: closed system Detailed description: The biocidal product is automatically added by means of a dosing pump and dedicated feeding lines in the additives tank. |
| Application rate(s) and frequency | Application Rate: For bacteria, 0,1 to 0,5 g glutaraldehyde per kg of the paper additive for preventive use. For yeasts and fungi, 0,25 to 0,5 g glutaraldehyde per kg of the paper additive for preventive use. For bacteria, 0,1 to 0,5 g glutaraldehyde per kg of the paper additive with a contact time of 2 days for curative use. For yeasts and fungi, 0,25 to 0,5 g glutaraldehyde per kg of the paper additive with a contact time of 2 days for curative use. Number and timing of application: Once per production run of the product to preserve. Glutaraldehyde provides immediate efficacy and prevents re-growth for a period up to 3 weeks. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.4.1. Use-specific instructions for use
Dose the biocidal product to the paper additive at a point to ensure adequate mixing using automated or manual metering.
For bacteria, 0,1 to 0,5 g glutaraldehyde per kg of the paper additive.
For yeasts and fungi, 0,25 to 0,5 g glutaraldehyde per kg of the paper additive.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.4.2. Use-specific risk mitigation measures
See general directions for use.
4.4.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.4.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.4.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.5. Use description
Table 5
Preservation of crude oil
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of crude oil with associated water in preparation for further processing. |
| Application method(s) | Method: closed system Detailed description: Batch injection via dosing pump and dedicated feed lines in stored volume of fuels. |
| Application rate(s) and frequency | Application Rate: 0,025 to 0,4 g glutaraldehyde per liter of water content in crude oil for preventive use. 0,025 to 0,4 g glutaraldehyde per liter of water content in crude oil with a contact time of 24 hours for curative use. Number and timing of application: Once per week. Glutaraldehyde provides immediate efficacy and short-term preservation up to one week. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.5.1. Use-specific instructions for use
Crude tanks being treated should be at least 10% full before treatment. Do not dispense into empty crude tanks. When treating storage tanks, please note that effective treatment will only be achieved with efficient mixing. Ideally, the biocidal product should be dosed into a flowing crude oil stream in the storage tank inlet.
Dose 0,025 to 0,4 g glutaraldehyde per liter of water content in crude oil.
Dose level should be proportional to the risk and level of infection, and anticipated time before the next treatment or fluid discharge. Dosing system should be a closed system. Adequate agitation is required to ensure homogeneity throughout the fluid volume.
The dose and frequency strongly depend on the formulation and intended use of the matrix (crude oil) to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.5.2. Use-specific risk mitigation measures
See general directions for use.
Additionally: In case of direct release of the aqueous phase to the sewer the concentration shall not exceed 0,75 mg glutaraldehyde/L.
4.5.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.5.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
Associated water should be disposed of according to all local and regional regulations.
See general directions for use.
4.5.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.6. Use description
Table 6
Preservation of drilling fluids in the oil and gas industry
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of fluids, (e.g., drill muds, cementing fluids, spacer fluids) used in the drilling of oil, gas and water wells. |
| Application method(s) | Method: closed system Detailed description: Periodical injection directly into prepared drilling fluids. |
| Application rate(s) and frequency | Application Rate: 0,25 to 0,5 g glutaraldehyde per liter of drilling fluid with a contact time of 1 hour for curative use. Number and timing of application: Treatment is required when there is evidence, or a very high likelihood, of microbial degradation of drilling fluids. Treatment can be repeated as often as required, based on monitoring of microbial populations and biocide concentration. Resurgent and robust microbial populations should be treated at most 3 times per week. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.6.1. Use-specific instructions for use
Dose 0,25 to 0,5 g glutaraldehyde per liter of drilling fluid.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
Ensure that treated material is separated from other muds after use. Used drilling fluids must be injected directly into the formation, collected for reuse in a separate, closed container, or disposed of properly according to local, state, or federal requirements as described in the SDS. It is not allowed to discharge used drilling fluids overboard.
4.6.2. Use-specific risk mitigation measures
Preserved materials must be recycled or disposed of as solid waste.
See also the general directions for use.
4.6.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.6.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.6.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.7. Use description
Table 7
Preservation of fracturing fluids during storage in the oil and gas industry
| Product type | PT06: Preservatives for products during storage |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of fluids used in the fracturing process. |
| Application method(s) | Method: closed system Detailed description: Injection directly into prepared fracturing fluids. |
| Application rate(s) and frequency | Application Rate: 0,25 to 0,5 g glutaraldehyde per liter of fracturing fluid for preventive use. 0,25 to 0,5 g glutaraldehyde per liter of fracturing fluid with a contact time of 1 hour for curative use. Number and timing of application: Treatment is required when there is evidence, or a very high likelihood, of microbial degradation of fracturing fluids. Treatment can be repeated as often as required, based on monitoring of microbial populations and biocide concentration. Resurgent and robust microbial populations should be treated at most 3 times per week. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.7.1. Use-specific instructions for use
Dose 0,25 to 0,5 g glutaraldehyde per liter of fracturing fluid.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.7.2. Use-specific risk mitigation measures
See general directions for use.
4.7.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.7.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
Additional:
Contaminated water arising from cleaning will be collected and removed for disposal according to EU and local regulations and conditions.
Waste product remaining in containers after use will be returned, in the containers, to the supplier for cleaning/refilling.
Waste sludge from treatment works will be handled as industrial waste and not spread on land.
4.7.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.8. Use description
Table 8
Preservation of liquids used in closed re-circulating cooling systems
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Indoor use Outdoor use Liquid-closed re-circulating cooling/heating and processing systems. |
| Application method(s) | Method: closed system Detailed description: Dosing into the cooling system. |
| Application rate(s) and frequency | Application Rate: 25 to 200 g glutaraldehyde per m3 of water. Number and timing of application: Bi- or tri- monthly according to the characteristics of the system and the stability of the biocidal product in the treated water. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.8.1. Use-specific instructions for use
It is recommended to mechanically cleanse dirty systems with fresh water before starting the treatment with the biocidal product.
Dose in a well-mixed point of the circuit, below the water level. When opening the system for servicing or maintenance, biocide can be added to reach the initial dosing concentrations.
System monitor
Control the level of biocide with a test kit at least every 3 months and prior to shut off period of the system. Control microbial contamination with dip slides or other appropriate techniques at least every 3 months
Particular attention should be addressed during the shut off period of the system where stagnant fluids are more susceptible to microbial contamination.
Dose 25 to 200 g glutaraldehyde per m3 of water.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.8.2. Use-specific risk mitigation measures
Drain off preserved cooling fluids at least five days after the last addition of the biocidal product.
See also the general directions for use.
4.8.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.8.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.8.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.9. Use description
Table 9
Preservation of liquids used in open re-circulating cooling systems
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: green algae Development stage: no data |
| Field(s) of use | Outdoor use Liquid-open re-circulating cooling and processing systems. |
| Application method(s) | Method: open system Detailed description: Glutaraldehyde is automatically added in the water circuit, usually as upstream as possible, by means of injection by a dosing pump and dedicated feeding lines. A timer is used for intermittent dosage. |
| Application rate(s) and frequency | Application Rate: 25 to 50 g glutaraldehyde per m3 of water Number and timing of application: Typical dose: 1-2 days |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.9.1. Use-specific instructions for use
For control of microbial growth in industrial cooling water systems treated with a biocidal product by slug dosing.
Not intended for use in once-through cooling systems. Most cooling towers work continuously over the whole year. The evaporation rate increases in summer when the air is warm but the temperature of the water remains suitable for the micro-organisms all over the year because it is warmed up by the industrial process that generates an excess of heat.
It is recommended to mechanically cleanse dirty systems before starting the treatment with the biocidal product.
Dose in a well-mixed point of the circuit, below the water level.
Typical dose: 1-2 days. Each slug dose lasts 15-30 minutes, depending on the pump capacity and the volume of water in the circuit. Treatment should not exceed 2 days.
Dose 25 to 50 g glutaraldehyde per m3 of water.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.9.2. Use-specific risk mitigation measures
The use is restricted to small cooling systems with a maximum blowdown of 2 m3/h. Waste water must be discharged to the municipal sewer, purified in an on-site industrial sewage treatment plant including a biological treatment step, or directly to surface water via a settling pond that allows sufficient retention.
4.9.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.9.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.9.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.10. Use description
Table 10
Preservation of injection water in the oil and gas industry
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of injection water in the oil and gas industry. |
| Application method(s) | Method: closed system Detailed description: The biocidal product is dosed using automated pumps directly into the water stream, after mixing of production water and make-up water into the petroleum reservoir. |
| Application rate(s) and frequency | Application Rate: Bacteria: curative use, 50 to 1 000 g glutaraldehyde per m3 of injection water with a contact time of 24 hours. Anaerobic bacteria: preventive, use 150 to 1 000 g glutaraldehyde per m3 of injection water. Number and timing of application: The biocidal product is typically dosed in a weekly batch fashion, ranging from one to five hours per dose. Batches may occur up to three times per week in severe cases. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.10.1. Use-specific instructions for use
Glutaraldehyde should be dosed separately from other oil field chemistries such as antifoaming agents, oxygen scavengers, flocculants, or other oxidizing biocides (e.g. chlorite) in order to prevent cross reactivity. Successive addition may therefore be required to optimize performance. If a deaerator is being treated with oxidizing biocides, glutaraldehyde should be dosed downstream of the deaeration unit.
Dose 50 to 1 000 g glutaraldehyde per m3 of injection water.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.10.2. Use-specific risk mitigation measures
If discharged into seawater 0,2 mg/L glutaraldehyde must not be exceeded in the produced water. This concentration can be achieved either by slow release and/or long retention times resulting in degradation of glutaraldehyde and/or by dilution and/or by addition of sodium bisulphite at pH 5 (release after at least 20 minutes) or addition of sodium hydroxide to pH 12 (release after at least 10-16 hours) as degradation aids. Produced water containing up to 750 mg/L glutaraldehyde can be used for re-injection. Run lab test to determine the soiling dependent dosage and degradation rate in use.
When applied onshore, preserved fluids must be recycled or disposed of as hazardous waste. If release to the sewer is unavoidable, the concentration shall not exceed 1 mg glutaraldehyde/L.
4.10.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.10.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.10.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.11. Use description
Table 11
Preservation of hydro-testing fluids and mothballing fluids in the oil and gas industry
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of hydro-testing fluids and mothballing fluids in the oil and gas industry. |
| Application method(s) | Method: closed system Detailed description: Continuous injection into the water stream during the pipeline filling operation using chemical injection skids equipped with injection pumps. |
| Application rate(s) and frequency | Application Rate: Bacteria: curative use, 50 to 1 000 g glutaraldehyde per m3 of hydro-testing fluid or mothballing fluid with a contact time of 24 hours, depending on the water quality. Anaerobic bacteria: preventive use, 150 to 1 000 g glutaraldehyde per m3 of hydro-testing fluid or mothballing fluid, depending on the water quality and required residence time within the equipment. Number and timing of application: There is no additional biocide injection into the hydro-testing fluid once the filling operation is completed. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.11.1. Use-specific instructions for use
Dose 50 to 1 000 g glutaraldehyde per m3 of hydro-testing fluid or mothballing fluid, depending on the water quality and required residence time within the equipment.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.11.2. Use-specific risk mitigation measures
If discharged into seawater 0,2 mg/L glutaraldehyde must not be exceeded in the hydrotesting and mothballing fluids. This concentration can be achieved either by slow release and/or long retention times resulting in degradation of glutaraldehyde and/or by dilution and/or by addition of sodium bisulphite at pH 5 (release after at least 20 minutes) or addition of sodium hydroxide to pH 12 (release after at least 10-16 hours) as degradation aids. Hydrotest and mothballing water containing up to 750 mg/L glutaraldehyde after the pressure test can be used for re-injection. Run lab test to determine the soiling dependent dosage and degradation rate in use.
When applied onshore, preserved fluids must be recycled or disposed of as hazardous waste. If release to the sewer is unavoidable, the concentration shall not exceed 1 mg glutaraldehyde/L.
4.11.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.11.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.11.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.12. Use description
Table 12
Preservation of water-based fracturing fluids for the oil and gas industry
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of water-based fracturing fluids for the oil and gas industry (i.e. shale gas extraction, wet shale extraction, shale oil extraction, production from tight gas reservoirs, production of coal bed methane and fracturing in conventional reservoirs). |
| Application method(s) | Method: closed system Detailed description: Glutaraldehyde is typically applied in a mixing tank, as it cannot be exposed to open systems such as the hydraulic fracturing pond or other open water sources that make up the hydraulic fracturing pond water.Glutaraldehyde is applied to the mixing tank using automated pumps, together with other chemicals such as but not limited to friction reducers, gelling agents, proppants (sand in case of slick water), corrosion inhibitors. |
| Application rate(s) and frequency | Application Rate: Bacteria: curative use, 50 to 1 000 g glutaraldehyde per m3 of fracturing fluid with a contact time of 24 hours. Anaerobic bacteria: preventive use, 150 to 1 000 g glutaraldehyde per m3 of fracturing fluid. Number and timing of application: In the hydraulic fracturing industry the application of the biocidal product is typically a single injection, which happens during the actual fracturing. A new biocide addition is only done when the well is re-fractured. Refracturing is rare but can be performed up to 20 times during the lifetime of a well. The lifetime of a well can reach up to 20 years. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.12.1. Use-specific instructions for use
Typically applied through a closed system to a mixing tank using a pump. Glutaraldehyde may be used in combination with other chemistries such as friction reducers, gelling agents, proppants, and corrosion inhibitors, and applied together with these chemistries in the mixing tank(s). If used for intermittent treatments during operations, a stream of glutaraldehyde will be directly dosed into the process water stream from a separate tank into a closed system, thereby significantly reducing the chance of exposure.
Dose 50 to 1 000 g glutaraldehyde per m3 of fracturing fluid.
The dose strongly depends on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.12.2. Use-specific risk mitigation measures
Preserved fracturing fluids are reused where applicable. If discharged into seawater 0,2 mg glutaraldehyde/L fracturing fluid must not be exceeded. This concentration can be achieved either by slow release and/or long retention times resulting in degradation of glutaraldehyde and/or by dilution and/or by addition of sodium bisulphite at pH 5 (release after at least 20 minutes) or addition of sodium hydroxide to pH 12 (release after at least 10-16 hours) as degradation aids. Run lab test to determine the soiling dependent dosage and degradation rate in use.
When applied onshore, preserved fluids must be recycled or disposed of as hazardous waste. If release to the sewer is unavoidable, the concentration shall not exceed 1 mg glutaraldehyde/L.
4.12.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use. In addition:
Conditions preventing emissions to water:
Emissions to surface water are prevented through the design of the installation. By way of example spills, leaks and cleaning solutions may be drained to a lined storage area, preventing release to surface water. Sub-surface releases of fluid during the fracturing process are prevented from reaching aquifers through the presence of relatively impermeable formations above the target formation. This limits upward migration of fluid. This is also relevant for recovered fluids that are re-injected for use or disposal. A minimum vertical separation distance between the target formation and aquifer should be respected. National legislation may also require a minimum depth/
Recovered water may finally be discharged via one or more large-scale waste water treatment plants where a combination of physical and biological treatments will reduce emissions to the receiving water.
Conditions preventing emissions to soil:
Emissions, through downward migration are prevented through the design of the installation. By way of example spills, leaks and cleaning solutions may be prevented from downward migration to soil by the employment of a non-permeable membrane below the well pad. Sludge from treatment works should not be spread on land.
Existence of standard municipal sewage treatment plant
Waste contractors employed to dispose of recovered water, may do so via a waste water treatment plant, depending on the properties of the water and conditions of local regulations.
4.12.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use. Additional:
Contaminated water arising from cleaning will be collected and removed for disposal according to EU and local regulations and conditions.
Waste product remaining in containers after use will be returned, in the containers, to the supplier for cleaning/refilling.
Waste sludge from treatment works will be handled as industrial waste and not spread on land.
4.12.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.13. Use description
Table 13
Preservation of produced water for recycling in the oil and gas industry
| Product type | PT11: Preservatives for liquid-cooling and processing systems |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Preservation of produced water for recycling in the oil and gas extraction industry. |
| Application method(s) | Method: closed system Detailed description: Dosing using pumps directly into the water stream before being mixed with fresh injection water and pumped into the petroleum reservoir. |
| Application rate(s) and frequency | Application Rate: Bacteria: curative use, 50 to 1 000 g glutaraldehyde per m3 of produced water with a contact time of 24 hours. Anaerobic bacteria: preventive use, 150 to 1 000 g glutaraldehyde per m3 of produced water. Number and timing of application: Batch treatment: The biocidal product is typically dosed in a weekly batch fashion, ranging from one to five hours per dose. Batches may occur up to three times per week in severe cases, but typically occur once per week. Continuous treatment: biocide is supplied in a continuous fashion during operations. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.13.1. Use-specific instructions for use
Dose for the preservation of produced water before re-use 50 to 1 000 g glutaraldehyde per m3 of produced water. This can be done batch wise or continuously.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.13.2. Use-specific risk mitigation measures
If discharged into seawater 0,2 mg/L glutaraldehyde must not be exceeded in the produced water. This concentration can be achieved either by slow release and/or long retention times resulting in degradation of glutaraldehyde and/or by dilution and/or by addition of sodium bisulphite at pH 5 (release after at least 20 minutes) or addition of sodium hydroxide to pH 12 (release after at least 10-16 hours) as degradation aids. Produced water containing up to 750 mg/L glutaraldehyde can be used for re-injection. Run lab test to determine the soiling dependent dosage and degradation rate in use.
When applied onshore, preserved fluids must be recycled or disposed of as hazardous waste. If release to the sewer is unavoidable, the concentration shall not exceed 1 mg glutaraldehyde/L.
4.13.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.13.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.13.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.14. Use description
Table 14
Slimicide treatment in the wet-end stage of the pulp and paper manufacturing process
| Product type | PT12: Slimicides |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: yeasts Development stage: no data Scientific name: no data Common name: fungi Development stage: no data |
| Field(s) of use | Indoor use Slimicide treatment in the wet-end stage of the pulp and paper manufacturing process. |
| Application method(s) | Method: closed system Detailed description: Automatic dosing by a pump and fixed pipes into the primary circuit, usually in the collection sump or in the headbox. |
| Application rate(s) and frequency | Application Rate: Initial dose (wet-end defouling treatment): 250 g glutaraldehyde per ton paper pulp. Wet-end maintenance dose: 100 g glutaraldehyde per ton paper pulp. Number and timing of application: Initial dose (Wet end de-fouling treatment): 2-6 automatic slug (= shock) dose additions/day. Repeat 1 to 3 days until control is achieved. Wet-end maintenance dose: 2-6 automatic slug dose additions/day, as necessary to maintain control. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.14.1. Use-specific instructions for use
Dose in a well-mixed point of the primary circuit, below the water level. Heavily fouled systems should be boiled out prior to initial treatment.
Each slug dose lasts 15-30 minutes.
Initial dose (wet-end defouling treatment): 250 g glutaraldehyde per ton paper pulp.
Wet-end maintenance dose: 100 g glutaraldehyde per ton of paper pulp.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.14.2. Use-specific risk mitigation measures
Application is only allowed in paper factories that comply with the Industrial Emission Directive 2010/75/EU where wastewater is purified in an on-site industrial sewage treatment plant including a biological treatment step in accordance to the Best Available Techniques (BAT) as prescribed in the BAT-reference document (BREF) for the production of pulp, paper and board. The effluent must be diluted at least 200 times. Paper factories that are exempted from the Industrial Emission Directive must discharge to the municipal sewer.
4.14.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.14.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.14.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.15. Use description
Table 15
Slimicide treatment in the de-inking process of the pulp and paper
| Product type | PT12: Slimicides |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data Scientific name: no data Common name: yeasts Development stage: no data Scientific name: no data Common name: fungi Development stage: no data |
| Field(s) of use | Indoor use Slimicide treatment in the de-inking process of the pulp and paper. |
| Application method(s) | Method: closed system Detailed description: Automatic dosing by pump and fixed pipes into the circuit, usually in the pulper. |
| Application rate(s) and frequency | Application Rate: Initial dose (de-fouling treatment): 250 g glutaraldehyde per ton paper pulp. Maintenance dose: 100 g glutaraldehyde per ton paper pulp. Number and timing of application: Initial dose (de-fouling treatment): 1-2 automatic slug (= shock) dose additions/day. Repeat for 1 to 2 days until control is achieved. Maintenance dose: 1-2 automatic slug dose additions/day, as necessary to maintain control. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.15.1. Use-specific instructions for use
Dose in a well-mixed point of the primary circuit, below the water level. Heavily fouled systems should be boiled out prior to initial treatment.
Each slug dose lasts 30 minutes.
Initial dose (de-fouling treatment): 250 g glutaraldehyde per ton paper pulp.
Maintenance dose: 100 g glutaraldehyde per ton paper pulp.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.15.2. Use-specific risk mitigation measures
See general directions for use.
Application is only allowed in paper factories that comply with the Industrial Emission Directive 2010/75/EU where wastewater is purified in an on-site industrial sewage treatment plant including a biological treatment step in accordance to the Best Available Techniques (BAT) as prescribed in the BAT-reference document (BREF) for the production of pulp, paper and board. Paper factories that are exempted from the Industrial Emission Directive must discharge to the municipal sewer.
4.15.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.15.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.15.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.16. Use description
Table 16
Slimicide treatment in injection water in the oil and gas industry
| Product type | PT12: Slimicides |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Slimicide treatment in injection water in the oil and gas industry. |
| Application method(s) | Method: closed system Detailed description: Dosing directly into the water stream using pumps, after mixing of production water and make-up water and before injection of the water into the petroleum reservoir. |
| Application rate(s) and frequency | Application Rate: 50 to 1 000 g glutaraldehyde per m3 injection water. Number and timing of application: Batches may occur up to three times per week in severe cases, but typically occur once per week. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.16.1. Use-specific instructions for use
Injection water is often deaerated before being pumped into the sub-surface. Separation of chemical treatments should be considered when dosing glutaraldehyde, as it may interfere with other common chemistries such as anti-foams, oxygen scavengers, flocculants, and other oxidizing biocides (e.g. chlorite). Successive addition of different chemical packages may be necessary to prevent cross reactivity and to optimize performance. When a deaerator is present and treated with chlorite or a similar oxidizing chemistry, glutaraldehyde is typically dosed after the deaerator.
Dose 50 to 1 000 g glutaraldehyde per m3 injection water.
The dose and frequency strongly depend on the formulation and intended use of the matrix to which the preservative is added. Therefore, the user shall determine dosage requirements for their specific matrix/system to be preserved. The lowest effective dose shall be used. If needed, consult the authorisation holder of the preservative product.
4.16.2. Use-specific risk mitigation measures
If discharged into seawater 0,2 mg/L glutaraldehyde must not be exceeded in the produced water. This concentration can be achieved either by slow release and/or long retention times resulting in degradation of glutaraldehyde and/or by dilution and/or by addition of sodium bisulphite at pH 5 (release after at least 20 minutes) or addition of sodium hydroxide to pH 12 (release after at least 10-16 hours) as degradation aids. Produced water containing up to 750 mg/L glutaraldehyde can be used for re-injection. Run lab test to determine the soiling dependent dosage and degradation rate in use.
When applied onshore, preserved fluids must be recycled or disposed of as hazardous waste. If release to the sewer is unavoidable, the concentration shall not exceed 1 mg glutaraldehyde/L.
4.16.3. Where specific to the use, the particulars of likely direct or indirect effects, first aid instructions and emergency measures to protect the environment
See general directions for use.
4.16.4. Where specific to the use, the instructions for safe disposal of the product and its packaging
See general directions for use.
4.16.5. Where specific to the use, the conditions of storage and shelf-life of the product under normal conditions of storage
See general directions for use.
4.17. Use description
Table 17
Slimicide treatment in hydro-testing fluids and mothballing fluids in the oil and gas industry
| Product type | PT12: Slimicides |
| Where relevant, an exact description of the authorised use | Not relevant. |
| Target organism(s) (including development stage) | Scientific name: no data Common name: bacteria Development stage: no data |
| Field(s) of use | Outdoor use Slimicide treatment in hydro-testing fluids and mothballing fluids in the oil and gas industry. |
| Application method(s) | Method: closed system Detailed description: Continuous injection into the water stream during the pipeline filling operation using chemical injection skids equipped with injection pumps. |
| Application rate(s) and frequency | Application Rate: 50 to 1 000 g glutaraldehyde per m3 hydro-testing fluid or mothballing fluid, depending on the water quality and required residence time within the equipment. Number and timing of application: There is no additional biocide injection into the hydro-testing fluid once the filling operation is completed. |
| Category(ies) of users | Industrial Trained professional |
| Pack sizes and packaging material | — Pails: 25L nominal, material of construction is high density polyethylene. — Drums: 220L nominal, material of construction is high density polyethylene. — IBC (intermediate bulk container): 1 000 L nominal, material of construction is high density polyethylene. — Bulk tank truck: 28 MT max. gross weight, material of construction is stainless steel. — Bulk ISO tank: 20 MT max. gross weight, material of construction is stainless steel. — Offshore-suitable drums: 200L, material of construction is high density polyethylene. — Offshore-suitable semi-bulk containers: 1 000 L, material of construction is stainless steel. — Offshore-suitable containers: 500 IG (2 273 L), material of construction is stainless steel. — Offshore-suitable containers: 1 000 IG (4 546 L), material of construction is stainless steel. |
4.17.1. Use-specific instructions for use
Dose 50 to 1 000 g glutaraldehyde per m3 of hydro-testing fluid or mothballing fluid, depending on the water quality and required residence time within the equipment.
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