Commission 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

Image omitted; see official source	Official Journal of the European Union	EN L series
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	2025/1906	30.9.2025

THE EUROPEAN COMMISSION,

Having regard to the Treaty on the Functioning of the European Union,

Having regard to Regulation (EU) No 528/2012 of the European Parliament and of the Council of 22 May 2012 concerning the making available on the market and use of biocidal products ¹, and in particular Article 44(5), first subparagraph, thereof,

Whereas:

• (1) On 20 September 2016, MC (Netherlands) 1 B.V. submitted an application to the European Chemicals Agency (‘the Agency’) in accordance with Article 43(1) of Regulation (EU) No 528/2012 for Union authorisation of a biocidal product family named ‘GA 24-50 BPF’ of product-types 6, 11 and 12, as described in Annex V to that Regulation, providing written confirmation that the competent authority of the Netherlands had agreed to evaluate the application. The application was recorded under case number BC-AE027041-75 in the Register for Biocidal Products.

• (2) ‘GA 24-50 BPF’ contains glutaraldehyde as the active substance, included in the Union list of approved active substances referred to in Article 9(2) of Regulation (EU) No 528/2012 for product-types 6, 11 and 12.

• (3) On 31 May 2022, the evaluating competent authority submitted, in accordance with Article 44(1) of Regulation (EU) No 528/2012, an assessment report and the conclusions of its evaluation to the Agency.

• (4) On 18 March 2025, the Agency submitted to the Commission its opinion ², the draft summary of the biocidal product characteristics (‘SPC’) of ‘GA 24-50 BPF’ and the final assessment report on the biocidal product family, in accordance with Article 44(3) of Regulation (EU) No 528/2012.

• (5) The opinion concludes that ‘GA 24-50 BPF’ is a biocidal product family within the meaning of Article 3(1), point (s), of Regulation (EU) No 528/2012, that it is eligible for Union authorisation in accordance with Article 42(1) of that Regulation and that, subject to compliance with the draft SPC, it meets the conditions laid down in Article 19(6) of that Regulation.

• (6) The active substance glutaraldehyde meets the criteria for classification as a substance that can lead to respiratory sensitisation as defined in Section 3.4.1.1 of Annex I to Regulation (EC) No 1272/2008 of the European Parliament and of the Council ³. Therefore, that active substance meets the conditions for being considered a candidate for substitution in accordance with Article 10(1), point (b), of Regulation (EU) No 528/2012 and the evaluating competent authority performed a comparative assessment of the biocidal product family in accordance with Article 23(1) of that Regulation. In the comparative assessment no alternative could be identified as the chemical diversity was considered insufficient to substitute ‘GA 24-50 BPF’. Therefore, the biocidal product family should be authorised for a period not exceeding 5 years in accordance with Article 23(6) of Regulation (EU) No 528/2012.

• (7) On 11 April 2025, the Agency transmitted to the Commission the draft SPC in all the official languages of the Union in accordance with Article 44(4) of Regulation (EU) No 528/2012.

• (8) The Commission concurs with the opinion of the Agency and considers it therefore appropriate to grant a Union authorisation for the biocidal product family ‘GA 24-50 BPF’.

• (9) The measures provided for in this Regulation are in accordance with the opinion of the Standing Committee on Biocidal Products,

HAS ADOPTED THIS REGULATION:

Article 1

A Union authorisation with authorisation number EU-0030162-0000 is hereby granted to MC (Netherlands) 1 B.V. for the making available on the market and use of the biocidal product family ‘GA 24-50 BPF’ in accordance with the summary of the biocidal product characteristics set out in the Annex.

The Union authorisation is valid from 20 October 2025 until 30 September 2030.

Article 2

This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.

This Regulation shall be binding in its entirety and directly applicable in all Member States.

Done at Brussels, 12 September 2025.

For the Commission

The President

Ursula VON DER LEYEN

ANNEX

SUMMARY OF PRODUCT CHARACTERISTICS FOR A BIOCIDAL PRODUCT FAMILY

GA 24-50 BPF

Product type(s)

PT06: Preservatives for products during storage

PT11: Preservatives for liquid-cooling and processing systems

PT12: Slimicides

Authorisation number: EU-0030162-0000

R4BP asset number: EU-0030162-0000

PART I

FIRST INFORMATION LEVEL

1. ADMINISTRATIVE INFORMATION

1.1.   Family name

Name	GA 24-50 BPF

1.2.   Product type(s)

Product type(s)	PT06: Preservatives for products during storage PT11: Preservatives for liquid-cooling and processing systems PT12: Slimicides

1.3.   Authorisation holder

Name and address of the authorisation holder	Name	MC (Netherlands) 1 B.V.
Name and address of the authorisation holder	Address	Montrealweg 15 3197KH Botlek Rotterdam NL
Authorisation number		EU-0030162-0000
R4BP asset number		EU-0030162-0000
Date of the authorisation		20 October 2025
Expiry date of the authorisation		30 September 2030

1.4.   Manufacturer(s) of the product

Name of manufacturer	MC (US) 3 LLC
Address of manufacturer	Route 25 West Virginia 25112 Institute, United States (the)
Location of manufacturing sites	MC (US) 3 LLC site 1 Route 25 West Virginia 25112 Institute, United States (the)
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Name of manufacturer	Microbial Control (Switzerland) GmbH
Address of manufacturer	Wolleraustrasse 15-17 CH-8807 Freienbach, Switzerland
Location of manufacturing sites	Microbial Control (Switzerland) GmbH site 1 Geslecht (Harbour 1931) 9130 Kallo, Belgium Microbial Control (Switzerland) GmbH site 2 Madoerastraat 10 3199 KR Maasvlakte, Rotterdam, Netherlands (the)

1.5.   Manufacturer(s) of the active substance(s)

Active substance	Glutaraldehyde
Name of manufacturer	MC (US) 3 LLC
Address of manufacturer	Route 25 West Virginia 25112, Institute United States (the)
Location of manufacturing sites	MC (US) 3 LLC site 1 Route 25 West Virginia 25112 Institute, United States (the)

2. PRODUCT FAMILY COMPOSITION AND FORMULATION

2.1.   Qualitative and quantitative information on the composition of the family

Common name	IUPAC name	Function	CAS number	EC number	Content (%)
Glutaraldehyde	1,5-pentanedial	Active substance	111-30-8	203-856-5	12,9 - 55,3 % (w/w)

2.2.   Type(s) of formulation

Formulation type(s)	AL Any other liquid

PART II.

SECOND INFORMATION LEVEL META SPC(S)

1. META SPC 1 ADMINISTRATIVE INFORMATION

1.1.   Meta SPC 1 identifier

Identifier	Meta SPC: meta SPC GA 50

1.2.   Suffix to the authorisation number

Number	1-1

1.3.   Product type(s)

Product type(s)	PT06: Preservatives for products during storage PT11: Preservatives for liquid-cooling and processing systems PT12: Slimicides

2. META SPC 1 COMPOSITION

2.1.   Qualitative and quantitative information on the composition of the meta SPC 1

Common name	IUPAC name	Function	CAS number	EC number	Content (%)
Glutaraldehyde	1,5-pentanedial	Active substance	111-30-8	203-856-5	48,5 - 55,3 % (w/w)

2.2.   Type(s) of formulation of the meta SPC 1

Formulation type(s)	AL Any other liquid

3. HAZARD AND PRECAUTIONARY STATEMENTS OF THE META SPC 1

Hazard statements	H301: Toxic if swallowed. H314: Causes severe skin burns and eye damage. H317: May cause an allergic skin reaction. H330: Fatal if inhaled. H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled. H410: Very toxic 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. P284: [In case of inadequate ventilation] wear respiratory protection. P273: Avoid release to the environment. P301+P310: IF SWALLOWED: Immediately call a POISON CENTER. P330: Rinse mouth. 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. P391: Collect spillage. P403+P233: Store in a well-ventilated place. Keep container tightly closed. 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 Imperial Gallon (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 or 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 or 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 shall 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.

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 shall 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