Regulation (EU) No 1007/2011 of the European Parliament and of the Council of 27 September 2011 on textile fibre names and related labelling and marking of the fibre composition of textile products and repealing Council Directive 73/44/EEC and Directives 96/73/EC and 2008/121/EC of the European Parliament and of the Council Text with EEA relevance

Type Regulation
Publication 2011-09-27
Last updated 2018-02-15
State In force
Department Council of the European Union, European Parliament
Source EUR-Lex
articles 28
Reform history JSON API

Transfer the specimen to a Kjeldahl digestion flask. To the specimen weighing at least 1 g contained in the digestion flask, add, in the following order, 2,5 g potassium sulphate, 0,1-0,2 g selenium dioxide and 10 ml sulphuric acid (relative density at 20 °C: 1,84). Heat the flask, gently at first, until the whole of the fibre is destroyed, and then heat it more vigorously until the solution becomes clear and almost colourless. Heat it for a further 15 minutes. Allow the flask to cool, dilute the contents carefully with 10-20 ml water, cool, transfer the contents quantitatively to a 200 ml graduated flask and make up to volume with water to form the digest solution. Place about 20 ml of boric acid solution in a 100 ml conical flask and place the flask under the condenser of the Kjeldahl distillation apparatus so that the delivery tube dips just below the surface of the boric acid solution. Transfer exactly 10 ml of digest solution to the distillation flask, add not less than 5 ml of sodium hydroxide solution to the funnel, lift the stopper slightly and allow the sodium hydroxide solution to run slowly into the flask. If the digest solution and sodium hydroxide solution remain as two separate layers, mix them by gentle agitation. Heat the distillation flask gently and pass it into steam from the generator. Collect about 20 ml of distillate, lower the conical flask so that the tip of the delivery tube of the condenser is about 20 mm above the surface of the liquid and distil for 1 minute more. Rinse the tip of the delivery tube with water, catching the washings in the conical flask. Remove the conical flask and replace it with another conical flask containing roughly 10 ml of boric acid solution and collect about 10 ml distillate.

Titrate the two distillates separately with 0,02 N sulphuric acid, use the mixed indicator. Record the total titre for the two distillates. If the titre for the second distillate is more than 0,2 ml, repeat the test and start the distillation again using a fresh aliquot of digest solution.

Carry out a blank determination, i.e. digestion and distillation using the reagents only.

6.1.Calculate the percentage nitrogen content in the dry specimen as follows:

where

6.2.Using the values of 0,22 % for the nitrogen content of jute and 16,2 % for the nitrogen content of animal fibre, both percentages being expressed on the dry mass of the fibre, calculate the composition of the mixture as follows:

where

On a homogeneous mixture of textile materials, the confidence limits of results obtained by this method are not greater than ± 1 for a confidence level of 95 %.

This method is applicable, after removal of non-fibrous matter, to binary fibre mixtures of:

1.

polypropylene fibres (37)

with

2.

wool (1), animal hair (2 and 3), silk (4), cotton (5), acetate (19), cupro (21), modal (22), triacetate (24), viscose (25), acrylic (26), polyamide or nylon (30), polyester (35), glass fibre (44), elastomultiester (45), melamine (47) and polyacrylate (50).

The polypropylene fibre is dissolved out from a known dry mass of the mixture with boiling xylene. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed as a percentage of the dry mass of the mixture. The percentage of polypropylene is found by difference.

(a)Glass-stoppered conical flask of at least 200 ml capacity.

(b)Reflux condenser (suitable for liquids of high boiling point), fitting the conical flask (a).

(c)Heating mantle at boiling point of xylene.

Xylene distilling between 137 and 142 °C.

Xylene is highly flammable and has a toxic vapour. Suitable precautions must be taken in its use.

Follow the procedure described in the general instructions then proceed as follows:

To the specimen contained in the conical flask (3.1(a)), add 100 ml of xylene (3.2) per gram of specimen. Attach the condenser (3.1(b)), bring the contents to the boil and maintain at boiling point for 3 minutes.

Immediately decant the hot liquid through the weighed filter crucible (see Note 1). Repeat this treatment twice more, each time using a fresh 50 ml portion of solvent.

Wash the residue remaining in the flask successively with 30 ml of boiling xylene (twice), then with 75 ml of light petroleum (I.3.2.1 of general instructions) (twice). After the second wash with light petroleum, filter the contents of the flask through the crucible, transfer any residual fibres to the crucible with the aid of a small quantity of light petroleum and allow the solvent to evaporate. Dry the crucible and residue, cool and weigh them.

1.The filter crucible through which the xylene is to be decanted must be pre-heated.

2.After the treatment with boiling xylene, ensure that the flask containing the residue is cooled sufficiently before the light petroleum is introduced.

3.In order to reduce the fire and toxicity hazards to the operator, a hot extraction apparatus using the appropriate procedures, giving identical results, may be used (14).

Calculate the results as described in the general instructions. The value of ‘d’ is 1,00, except for melamine and polyacrylate, for which ‘d’ is 1,01.

On a homogeneous mixture of textile materials, the confidence limits of results obtained by this method are not greater than ± 1 for a confidence level of 95 %.

This method is applicable, after removal of non-fibrous matter, to binary fibre mixtures of:

1.

cotton (5), acetate (19), cupro (21), modal (22), triacetate (24), viscose (25), certain acrylics (26), certain modacrylics (29), polyamide or nylon (30), polyester (35) and elastomultiester (45)

with

2.

chlorofibres (27) based on homopolymers of vinyl chloride, whether after-chlorinated or not, polypropylene (37), elastolefin (46), melamine (47) and polypropylene/polyamide bicomponent (49).

The modacrylics concerned are those which give a limpid solution when immersed in concentrated sulphuric acid (relative density 1,84 at 20 °C).

This method can be used in place of methods No 8 and 9.

The constituent other than the chlorofibre, polypropylene, elastolefin, melamine or polypropylene/polyamide bicomponent (i.e. the fibres mentioned in paragraph 1.1) is dissolved out from a known dry mass of the mixture with concentrated sulphuric acid (relative density 1,84 at 20 °C). The residue, consisting of the chlorofibre, polypropylene, elastolefin, melamine or polypropylene/polyamide bicomponent is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed as a percentage of the dry mass of the mixture. The percentage of the second constituents is obtained by difference.

(a)Glass-stoppered conical flask of at least 200 ml capacity.

(b)Glass rod with flattened end.

(a)Sulphuric acid, concentrated (relative density at 20 °C: 1,84).

(b)Sulphuric acid, approximately 50 % (m/m) aqueous solution.

Prepare by adding carefully, while cooling, 400 ml of sulphuric acid (relative density at 20 °C: 1,84) to 500 ml of distilled or deionised water. After cooling to room temperature, dilute the solution to one litre with water.

(c)Ammonia, dilute solution.

Dilute 60 ml of concentrated ammonia solution (relative density at 20 °C: 0,880) to one litre with distilled water.

Follow the procedure described in the general instructions, then proceed as follows:

To the test specimen contained in the flask (3.1(a)) add 100 ml of sulphuric acid (3.2(a)) per gram of specimen.

Allow the contents of the flask to remain at room temperature for 10 minutes and during that time stir the test specimen occasionally by means of the glass rod. If a woven or knitted fabric is being treated, wedge it between the wall of the flask and the glass rod and exert a light pressure in order to separate the material dissolved by the sulphuric acid.

Decant the liquid through the weighed filter crucible. Add to the flask a fresh portion of 100 ml of sulphuric acid (3.2(a)) and repeat the same operation. Transfer the contents of the flask to the filter crucible and transfer the fibrous residue there with the aid of the glass rod. If necessary, add a little concentrated sulphuric acid (3.2(a)) to the flask in order to remove any fibres adhering to the wall. Drain the filter crucible with suction; remove the filtrate by emptying or changing the filter-flask, wash the residue in the crucible successively with 50 % sulphuric acid solution (3.2(b)), distilled or deionised water (I.3.2.3 of the general instructions), ammonia solution (3.2(c)) and finally wash thoroughly with distilled or deionised water, draining the crucible with suction after each addition. (Do not apply suction during the washing operation, but only after the liquid has drained off by gravity.) Dry the crucible and residue, cool and weigh them.

Calculate the results as described in the general instructions. The value of ‘d’ is 1,00, except for melamine and polypropylene/polyamide bicomponent, for which the value of ‘d’ is 1,01.

On a homogeneous mixture of textile materials, the confidence limits of results obtained by this method are not greater than ± 1 for a confidence level of 95 %.

This method is applicable, after removal of non-fibrous matter, to binary fibre mixtures of:

1.

acetate (19), triacetate (24), chlorofibre (27), certain modacrylics (29), certain elastanes (43)

with

2.

wool (1), animal hair (2 and 3), silk (4), cotton (5), cupro (21), modal (22), viscose (25), acrylic (26), polyamide or nylon (30), glass fibre (44), melamine (47) and polyacrylate (50).

Where modacrylics or elastanes are present, a preliminary test shall first be carried out to determine whether the fibre is completely soluble in the reagent. Mixtures containing chlorofibres may also be analysed by using method No 9 or 14.

The acetate and triacetate fibres, chlorofibres, certain modacrylics, and certain elastanes are dissolved out from a known dry mass with cyclohexanone at a temperature close to boiling point. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed as a percentage of the dry mass of the mixture. The percentage of chlorofibre, modacrylic, elastane, acetate and triacetate is found by difference.

(a)Hot extraction apparatus suitable for use in the test procedure in point 4 (see figure: this is a variant of the apparatus described in Melliand Textilberichte 56 (1975) pp. 643-645).

(b)Filter crucible to contain the test specimen.

(c)Porous baffle (porosity grade 1).

(d)Reflux condenser that can be adapted to the distillation flask.

(e)Heating device.

(a)Cyclohexanone, boiling point 156 °C.

(b)Ethyl alcohol, 50 % by volume.

Cyclohexanone is flammable and toxic. Suitable precautions must be taken in its use.

Follow the procedure described in the general instructions and then proceed as follows:

Pour into the distillation flask 100 ml of cyclohexanone per gram of material, insert the extraction container in which the filter crucible, containing the specimen and the porous baffle, slightly inclined, have previously been placed. Insert the reflux condenser. Bring to the boil and continue extraction for 60 minutes at a minimum rate of 12 cycles per hour.

After extraction and cooling remove the extraction container, take out the filter crucible and remove the porous baffle. Wash the contents of the filter crucible three or four times with 50 % ethyl alcohol heated to about 60 °C and subsequently with 1 litre of water at 60 °C.

Do not apply suction during or between the washing operations. Allow the liquid to drain under gravity and then apply suction.

Finally, dry the crucible with the residue, cool and weigh them.

Calculate the results as described in the general instructions. The value of ‘d’ is 1,00, except in the case of polyacrylate, for which ‘d’ is 1,02, silk and melamine, for which ‘d’ is 1,01, and acrylic, for which ‘d’ is 0,98.

On homogeneous mixtures of textile fibres, the confidence limits of results obtained by this method are not greater than ± 1 for a confidence level of 95 %.

This method is applicable, after removal of non-fibrous matter, to binary fibre mixtures of:

1.

melamine (47)

with

2.

cotton (5), aramid (31) and polypropylene (37).

The melamine is dissolved out from a known dry mass of the mixture with hot formic acid (90 % m/m).

The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed as a percentage of the dry mass of the mixture. The percentage of the second constituents is obtained by difference.

Keep strictly the recommended temperature range because the solubility of melamine is very much dependent on temperature.

(a)Glass-stoppered conical flask of at least 200 ml capacity.

(b)Shaking water bath or other apparatus to shake and maintain the flask at 90 ± 2 °C.

(a)Formic acid (90 % m/m, relative density at 20 °C: 1,204). Dilute 890 ml of 98 to 100 % m/m formic acid (relative density at 20 °C: 1,220) to 1 litre with water.

Hot formic acid is very corrosive and must be handled with care.

(b)Ammonia, dilute solution: dilute 80 ml of concentrated ammonia solution (relative density at 20 °C: 0,880) to 1 litre with water.

Follow the procedure described in the general instructions, then proceed as follows:

To the test specimen contained in the glass-stoppered conical flask of at least 200 ml capacity, add 100 ml of formic acid per gram of specimen. Insert the stopper and shake the flask to wet out the specimen. Maintain the flask in a shaking water bath at 90 ± 2 °C for 1 hour, shaking it vigorously. Cool the flask to room temperature. Decant the liquid through the weighed filter crucible. Add 50 ml of formic acid to the flask containing the residue, shake manually and filter the contents of the flask through the filter crucible. Transfer any residual fibres to the crucible by washing out the flask with a little more formic acid reagent. Drain the crucible with suction and wash the residue with formic acid reagent, hot water, dilute ammonia solution, and finally cold water, draining the crucible with suction after each addition. Do not apply suction until each washing liquor has drained under gravity. Finally, drain the crucible with suction, dry the crucible and residue, and cool and weigh them.

Calculate the results as described in the general instructions. The value of ‘d’ is 1,02.

On a homogeneous mixture of textile materials, the confidence limits of results obtained by this method are not greater than ± 2 for a confidence level of 95 %.

This method is applicable, after removal of non-fibrous matter, to binary fibre mixtures of:

1.

polyester (35)

with

2.

polyacrylate (50)

The principle, apparatus and reagent, test procedure, calculation and expression of results that apply to binary fibre mixtures of polyester with polyacrylate are those described in standard EN ISO 1833-25:2013. The ‘d’ value is 1,01.

CHAPTER 3

In general, the methods of quantitative chemical analysis are based on the selective solution of the individual components. There are four possible variants of this method:

1.

Using two different test specimens, a component (a) is dissolved from the first test specimen, and another component (b) from the second test specimen. The insoluble residues of each specimen are weighed and the percentage of each of the two soluble components is calculated from the respective losses in mass. The percentage of the third component (c) is calculated by difference.

2.

Using two different test specimens, a component (a) is dissolved from the first test specimen and two components (a and b) from the second test specimen. The insoluble residue of the first test specimen is weighed and the percentage of the component (a) is calculated from the loss in mass. The insoluble residue of the second test specimen is weighed; it corresponds to component (c). The percentage of the third component (b) is calculated by difference.

3.

Using two different test specimens, two components (a and b) are dissolved from the first test specimen and two components (b and c) from the second test specimen. The insoluble residues correspond to the two components (c) and (a) respectively. The percentage of the third component (b) is calculated by difference.

4.

Using only one test specimen, after removal of one of the components, the insoluble residue formed by the two other fibres is weighed and the percentage of the soluble component is calculated from the loss in mass. One of the two fibres of the residue is dissolved, the insoluble component is weighed and the percentage of the second soluble component is calculated from the loss in mass.

Where a choice is possible, it is advisable to use one of the first three variants.

Where chemical analysis is used, the expert responsible for the analysis must take care to select methods employing solvents which dissolve only the correct fibre(s), leaving the other fibre(s) intact.

By way of example, a table is given in Section V which contains a certain number of ternary fibre mixtures, together with methods for analysing binary fibre mixtures which can, in principle, be used for analysing these ternary fibre mixtures.

In order to reduce the possibility of error to a minimum, it is recommended that, whenever possible, chemical analysis using at least two of the four abovementioned variants shall be made.

Before proceeding with any analysis, all the fibres present in the mixture must be identified. In some chemical methods, the insoluble component of a mixture may be partially dissolved in the reagent used to dissolve the soluble component(s). Wherever possible, reagents have been chosen that have little or no effect on the insoluble fibres. If a loss in mass is known to occur during the analysis, the result shall be corrected; correction factors are given for this purpose. These factors have been determined in several laboratories by treating, with the appropriate reagent as specified in the method of analysis, fibres cleaned by the pre-treatment. These correction factors apply only to undergraded fibres and different correction factors may be necessary if the fibres have been degraded before or during processing. If the fourth variant, in which a textile fibre is subjected to the successive action of two different solvents, must be used, correction factors must be applied for possible losses in mass undergone by the fibre in the two treatments. At least two determinations shall be made, both in the case of manual separation and in the case of chemical separation.

Information common to the methods given for the quantitative chemical analysis of ternary fibre mixtures.

The field of application of each method for analysing binary fibre mixtures specifies to which fibres the method is applicable (see Chapter 2 relating to methods for quantitative analysis of certain binary textile fibre mixtures).

After the identification of the components of a mixture, the non-fibrous material is removed by suitable pre-treatment and then one or more of the four variants of the process of selective solution described in the introduction is applied. Except where this presents technical difficulties, it is preferable to dissolve the major fibre component so as to obtain the minor fibre component as final residue.

I.3.1.1. Filter crucibles and weighing bottles large enough to contain such crucibles, or any other apparatus giving identical results.

I.3.1.2. Vacuum flask.

I.3.1.3. Desiccator containing self-indicating silica gel.

I.3.1.4. Ventilated oven for drying specimens at 105 ± 3 °C.

I.3.1.5. Analytical balance, accurate to 0,0002 g.

I.3.1.6. Soxhlet extractor or other apparatus giving identical results.

I.3.2.1. Light petroleum, redistilled, boiling range 40 to 60 °C.

I.3.2.2. Other reagents are specified in the appropriate sections of each method.

I.3.2.3. Distilled or deionised water.

I.3.2.4. Acetone.

I.3.2.5. Orthophosphoric acid.

I.3.2.6. Urea.

I.3.2.7. Sodium bicarbonate.

All reagents used shall be chemically pure.

Because dry masses are determined, it is unnecessary to condition the specimen or to conduct analyses in a conditioned atmosphere.

Take a laboratory test sample that is representative of the laboratory bulk sample and sufficient to provide all the specimens, each of at least 1 g, that are required.

Where a substance not to be taken into account in the percentage calculations (see Article 19) is present, it shall first be removed by a suitable method that does not affect any of the fibre constituents.

For this purpose, non-fibrous matter which can be extracted with light petroleum and water is removed by treating the laboratory test sample in a Soxhlet extractor with light petroleum for 1 hour at a minimum rate of six cycles per hour. Allow the light petroleum to evaporate from the laboratory test sample, which is then extracted by direct treatment consisting in soaking the laboratory test sample in water at room temperature for 1 hour and then soaking it in water at 65 ± 5 °C for a further hour, agitating the liquor from time to time. Use a liquor: laboratory test sample ratio of 100:1. Remove the excess water from the laboratory test sample by squeezing, suction or centrifuging and then allow the laboratory test sample to become air-dry.

In the case of elastolefin or fibre mixtures containing elastolefin and other fibres (wool, animal hair, silk, cotton, flax (or linen), true hemp, jute, abaca, alfa, coir, broom, ramie, sisal, cupro, modal, protein, viscose, acrylic, polyamide or nylon, polyester, elastomultiester) the procedure just described shall be slightly modified, in fact light petroleum ether shall be replaced by acetone.

Where non-fibrous matter cannot be extracted with light petroleum and water, it shall be removed by substituting for the water method described above a suitable method that does not substantially alter any of the fibre constituents. However, for some unbleached, natural vegetable fibres (e.g. jute, coir) it is to be noted that normal pre-treatment with light petroleum and water does not remove all the natural non-fibrous substances; nevertheless additional pre-treatment is not applied unless the sample contains finishes insoluble in both light petroleum and water.

Analysis reports shall include full details of the methods of pre-treatment used.

Conduct all drying operations for not less than 4 hours and not more than 16 hours at 105 ± 3 °C in a ventilated oven with the oven door closed throughout. If the drying period is less than 14 hours, the specimen must be checkweighed to determine whether its mass is constant. The mass may be considered as constant if, after a further drying period of 60 minutes, its variation is less than 0,05 %.

Avoid handling crucibles and weighing bottles, specimens or residues with bare hands during the drying, cooling and weighing operations.

Dry specimens in a weighing bottle with its cover beside it. After drying, stopper the weighing bottle before removing it from the oven, and transfer it quickly to the desiccator.

Dry the filter crucible in a weighing bottle with its cover beside it in the oven. After drying, close the weighing bottle and transfer it quickly to the desiccator.

Where apparatus other than a filter crucible is used, drying operations shall be conducted in the oven so as to determine the dry mass of the fibres without loss.

Conduct all cooling operations in the desiccator, placed beside the balance, until the cooling of the weighing bottles is complete, and in any case for not less than 2 hours.

After cooling, complete the weighing of the weighing bottle within 2 minutes of its removal from the desiccator; weigh to an accuracy of 0,0002 g.

Take from the pre-treated laboratory test sample a test specimen of at least 1 g (in mass). Cut yarn or cloth into lengths of about 10 mm, dissected as much as possible. Dry the specimen in a weighing bottle, cool it in the desiccator and weigh it. Transfer the specimen to the glass vessel specified in the appropriate section of the Union method, reweigh the weighing bottle immediately and obtain the dry mass of the specimen by difference; complete the test as specified in the appropriate section of the applicable method. Examine the residue microscopically to check that the treatment has in fact completely removed the soluble fibre(s).

Express the mass of each component as a percentage of the total mass of fibre in the mixture. Calculate the results on the basis of dean dry mass, adjusted by (a) the agreed allowances and (b) the correction factors necessary to take account of loss of non-fibrous matter during pre-treatment and analysis.

I.8.3. Calculation examples are given in Section IV.

This method is applicable to textile fibres of all types provided they do not form an intimate mixture and that it is possible to separate them by hand.

After identification of the textile components, the non-fibrous matter is removed by a suitable pre-treatment and then the fibres are separated by hand, dried and weighed in order to calculate the proportion of each fibre in the mixture.

II.3.1. Weighing bottles or other apparatus giving identical results.

II.3.2. Desiccator containing self-indicating silica gel.

II.3.3. Ventilated oven for drying specimens at 105 ± 3 °C.

II.3.4. Analytical balance accurate to 0,0002 g.

II.3.5. Soxhlet extractor, or other apparatus giving identical results.

II.3.6. Needle.

II.3.7. Twist tester or similar apparatus.

II.4.1. Light petroleum, redistilled, boiling range 40 to 60 °C.

II.4.2. Distilled or deionised water.

See I.4.

See I.5.

See I.6.

Take from the pre-treated laboratory test sample a specimen of mass not less than 1 g. For a very fine yarn, the analysis may be made on a minimum length of 30 m, whatever its mass.

Cut the yarn into pieces of a suitable length and separate the fibre types by means of a needle and, if necessary, a twist tester. The fibre types so obtained are placed in pre-weighed weighing bottles and dried at 105 ± 3 °C to constant mass, as described in I.7.1 and I.7.2.

Take from the pre-treated laboratory test sample a specimen of mass not less than 1 g, not including a selvedge with edges carefully trimmed to avoid fraying and running parallel with weft or warp yarns, or in the case of knitted fabrics in the line of the wales and courses. Separate the different types of fibres and collect them in pre-weighed weighing bottles and proceed as described in II.8.1.

Express the mass of each component fibre as a percentage of the total mass of the fibres in the mixture. Calculate the results on the basis of clean dry mass, adjusted by (a) the agreed allowances and (b) the correction factors necessary to take account of losses in mass during pre-treatment operations.

II.9.2. For calculation of the percentage of each component with adjustment by agreed allowances and, where appropriate, by correction factors for losses in mass during pre-treatment: see I.8.2.

Wherever possible, manual separation shall be used, taking account of the proportions of components separated before proceeding to any chemical treatment of each of the separate components.

The precision indicated in each method of analysis of binary fibre mixtures relates to the reproducibility (see Chapter 2 relating to methods for quantitative analysis of certain binary textile fibre mixtures).

Reproducibility refers to the reliability, i.e. the closeness of agreement between experimental values obtained by operators in different laboratories or at different times using the same method and obtaining individual results on specimens of an identical homogeneous mixture.

Reproducibility is expressed by confidence limits of the results for a confidence level of 95 %.

By this is meant that the difference between two results in a series of analyses made in different laboratories would, given a normal and correct application of the method to an identical and homogeneous mixture, exceed the confidence limit only in five cases out of 100.

To determine the precision of the analysis of a ternary fibre mixture the values indicated in the methods for the analysis of binary fibre mixtures which have been used to analyse the ternary fibre mixture are applied in the usual way.

Given that in the four variants of the quantitative chemical analysis of ternary fibre mixtures, provision is made for two dissolutions (using two separate specimens for the first three variants and a single specimen for the fourth variant) and, assuming that E1 and E2 denote the precision of the two methods for analysing binary fibre mixtures, the precision of the results for each component is shown in the following table:

Component fibre Variants
1 2 and 3 4
a E1 E1 E1
b E2 E1 + E2 E1 + E2
c E1 + E2 E2 E1 + E2

If the fourth variant is used, the degree of precision may be found to be lower than that calculated by the method indicated above, owing to possible action of the first reagent on the residue consisting of components b and c, which would be difficult to evaluate.

III.2.1. Indicate the variant(s) used to carry out the analysis, the methods, reagents and correction factors.

III.2.2. Give details of any special pre-treatments (see I.6).

III.2.3. Give the individual results and the arithmetic mean, each to the first decimal place.

III.2.4. Wherever possible, state the precision of the method for each component, calculated according to the table in Section III.1.

Consider the case of a fibre mixture which gave the following components when qualitatively analysed for raw material composition: 1. carded wool; 2. nylon (polyamide); 3. unbleached cotton.

Using this variant, that is using two different specimens and removing one component (a = wool) by dissolution from the first specimen and a second component (b = polyamide) from the second specimen, the following results can be obtained:

1.

Dry mass of the first specimen after pre-treatment is (m1) = 1,6000 g

2.

Dry mass of the residue after treatment with alkaline sodium hypochlorite (polyamide + cotton) (r1) = 1,4166 g

3.

Dry mass of the second specimen after pre-treatment (m2) = 1,8000 g

4.

Dry mass of the residue after treatment with formic acid (wool + cotton) (r2) = 0,9000 g

Treatment with alkaline sodium hypochlorite does not entail any loss in mass of polyamide, while unbleached cotton loses 3 %, therefore d1 = 1,00 and d2 = 1,03.

Treatment with formic acid does not entail any loss in mass for wool or unbleached cotton, therefore d3 and d4 = 1,00.

If the values obtained by chemical analysis and the correction factors are substituted in the formula under I.8.1.1, the following result is obtained:

P1% (wool) = [1,03/1,00 – 1,03 × 1,4166/1,6000 + (0,9000/1,8000) × (1 – 1,03/1,00)] ×100 = 10,30

P2% (polyamide) = [1,00/1,00 – 1,00 × 0,9000/1,8000 + (1,4166/1,6000) × (1 – 1,00/1,00)] × 100 = 50,00

P3% (cotton) = 100 – (10,30 + 50,00) = 39,70

The percentages of the various clean dry fibres in the mixture are as follows:

wool 10,30 %
polyamide 50,00 %
cotton 39,70 %

These percentages must be corrected according to the formulae under I.8.2, in order to take account of the agreed allowances and the correction factors for any losses in mass after pre-treatment.

As indicated in Annex IX, the agreed allowances are as follows: carded wool 17,00 %, polyamide 6,25 %, cotton 8,50 %, also unbleached cotton shows a loss in mass of 4 %, after pre-treatment with light petroleum and water.

Therefore:

P1A% (wool) = 10,30 × [1 + (17,00 + 0,0)/100] / [10,30 × (1 + (17,00 + 0,0)/100) + 50,00 × (1 + (6,25 + 0,0)/100) + 39,70 × (1 + (8,50 + 4,0)/100)] × 100 = 10,97

P2A% (polyamide) = 50,0 × [(1 + (6,25 + 0,0)/100)/109,8385] × 100 = 48,37

P3A% (cotton) = 100 – (10,97 + 48,37) = 40,66

The raw material composition of the yarn is therefore as follows:

polyamide 48,4 %
cotton 40,6 %
wool 11,0 %
100,0 %

Consider the case of a fibre mixture which when qualitatively analysed gave the following components: carded wool, viscose, unbleached cotton.

Suppose that using variant 4, that is successively removing two components from the mixture of one single specimen, the following results are obtained:

1.

Dry mass of the specimen after pre-treatment (m) = 1,6000 g

2.

Dry mass of the residue after treatment with alkaline sodium hypochlorite (viscose + cotton) (r1) = 1,4166 g

3.

Dry mass of the residue after the second treatment of the residue r1 with zinc chloride/formic acid (cotton) (r2) = 0,6630 g

Treatment with alkaline sodium hypochlorite does not entail any loss in mass of viscose, while unbleached cotton loses 3 %, therefore d1 =1,00 and d2 = 1,03.

As a result of treatment with formic acid-zinc chloride, the mass of cotton increases by 4 %, so that d3 = 1,03 × 0,96 = 0,9888, rounded to 0,99, (d3 being the correction factor for the respective loss or increase in mass of the third component in the first and second reagents).

If the values obtained by chemical analysis and the correction factors are substituted in the formulae given in I.8.1.4, the following result is obtained:

P2% (viscose) = 1,00 × (1,4166/1,6000) × 100 – (1,00/1,03) × 41,02 = 48,71 %

P3% (cotton) = 0,99 × (0,6630/1,6000) × 100 = 41,02 %

P1% (wool) = 100 – (48,71 + 41,02) = 10,27 %

As has already been indicated for Variant 1, these percentages must be corrected by the formulae indicated in point I.8.2.

P1A% (wool) = 10,27 × [1 + (17,0 + 0,0)/100)]/[10,27 × (1 + (17,00 + 0,0)/100) +48,71 × (1 + (13 + 0,0)/100) + 41,02 × (1 + (8,5 + 4,0)/100)] × 100 = 10,61 %

P2A% (viscose) = 48,71 × [1 + (13 + 0,0)/100] / 113,2057 × 100 = 48,62 %

P3A% (cotton) = 100 – (10,61 + 48,62) = 40,77 %

The raw material composition of the mixture is therefore as follows:

viscose 48,6 %
cotton 40,8 %
wool 10,6 %
100,0 %
Mixture No Component fibres
--- ---
Component 1 Component 2
1. wool or hair
2. wool or hair
3. wool, hair or silk
4. wool or hair
5. wool, hair or silk
6. silk
7. polyamide or nylon
8. certain chlorofibres
9. acrylic
10. acetate
11. certain chlorofibres
12. certain chlorofibres
13. polyamide or nylon
14. acetate
15. acrylic
16. acetate
17. triacetate
18. acrylic
19. acrylic
20. acrylic
21. wool, hair or silk
22. viscose, cupro or certain types of modal
23. acrylic
24. certain chlorofibres
25. acetate
26. triacetate
27. acetate
28. triacetate
29. acetate
30. triacetate
31. triacetate
32. triacetate
33. acetate
34. acetate
35. certain chlorofibres
36. cotton
37. certain modacrylics

ANNEX IX

Fibre No Fibres Percentages
1-2 Wool and animal hair:
combed fibres 18,25
carded fibres 17,00  (1)
3 Animal hair:
combed fibres 18,25
carded fibres 17,00  (1)
Horsehair:
combed fibres 16,00
carded fibres 15,00
4 Silk 11,00
5 Cotton:
normal fibres 8,50
mercerised fibres 10,50
6 Kapok 10,90
7 Flax (or linen) 12,00
8 True hemp 12,00
9 Jute 17,00
10 Abaca 14,00
11 Alfa 14,00
12 Coir 13,00
13 Broom 14,00
14 Ramie (bleached fibre) 8,50
15 Sisal 14,00
16 Sunn 12,00
17 Henequen 14,00
18 Maguey 14,00
19 Acetate 9,00
20 Alginate 20,00
21 Cupro 13,00
22 Modal 13,00
23 Protein 17,00
24 Triacetate 7,00
25 Viscose 13,00
26 Acrylic 2,00
27 Chlorofibre 2,00
28 Fluorofibre 0,00
29 Modacrylic 2,00
30 Polyamide or nylon:
discontinuous fibre 6,25
filament 5,75
31 Aramid 8,00
32 Polyimide 3,50
33 Lyocell 13,00
34 Polylactide 1,50
35 Polyester 1,50
36 Polyethylene 1,50
37 Polypropylene 2,00
38 Polycarbamide 2,00
39 Polyurethane:
discontinuous fibre 3,50
filament 3,00
40 Vinylal 5,00
41 Trivinyl 3,00
42 Elastodiene 1,00
43 Elastane 1,50
44 Glass fibre:
with an average diameter of over 5 μm 2,00
with an average diameter of 5 μm or less 3,00
45 Elastomultiester 1,50
46 Elastolefin 1,50
47 Melamine 7,00
48 Metal fibre 2,00
Metallised fibre 2,00
Asbestos 2,00
Paper yarn 13,75
49 Polypropylene/polyamide bicomponent 1,00
50 Polyacrylate 30,00
(1) The agreed allowances of 17,00 % shall also be applied where it is impossible to ascertain whether the textile product containing wool and/or animal hair is combed or carded.

ANNEX X

Correlation Tables

Directive 2008/121/EC This Regulation
Article 1(1) Article 4
Article 1(2)(a)-(c)
Article 1(2)(d) Article 2(3)
Article 2(1) Article 3(1)
Article 2(2) introductory wording Article 2(2) introductory wording
Article 2(2)(a) Article 2(2)(a)
Article 2(2)(b) Article 2(2)(b) and (c)
Article 2(2)(c) Article 2(2)(d)
Article 3 Article 5
Article 4 Article 7
Article 5 Article 8
Article 6(1) and (2)
Article 6(3) Article 9(3)
Article 6(4) Article 9(4)
Article 6(5) Article 20
Article 7 Article 10
Article 8(1) first sentence Article 14(1)
Article 8(1) second sentence Article 14(2)
Article 8(2) Article 14(3)
Article 8(3) first subparagraph Article 16(1)
Article 8(3) second and third subparagraph Article 16(2)
Article 8(4) Article 16(3)
Article 8(5)
Article 9(1) Article 11(1) and (2)
Article 9(2) Article 11(3)
Article 9(3) Article 13 and Annex IV
Article 10(1)(a) Article 17(2)
Article 10(1)(b) Article 17(3)
Article 10(1)(c) Article 17(4)
Article 10(2) Article 17(5)
Article 11 Article 15(4)
Article 12 Article 19(2) and Annex VII
Article 13(1) Article 19(1)
Article 13(2)
Article 14(1)
Article 14(2)
Article 15 Article 21
Article 16
Article 17
Article 18
Article 19
Article 20
Annex I Annex I
Annex II Annex III
Annex III Annex V
Annex III point 36 Article 3(1)(j)
Annex IV Annex VI
Annex V Annex IX
Annex VI
Annex VII
Directive 96/73/EC This Regulation
--- ---
Article 1 Article 1
Article 2 Annex VIII Chapter 1 Section I (2)
Article 3 Article 19(1)
Article 4 Article 19(4)
Article 5 Article 21
Article 6
Article 7
Article 8
Article 9
Annex I Annex VIII Chapter 1 Section I
Annex II Annex VIII Chapter 1 Section II and Chapter 2
Annex III
Annex IV
Directive 73/44/EEC This Regulation
--- ---
Article 1 Article 1
Article 2 Annex VIII Chapter 1 Section I
Article 3 Article 19(1)
Article 4 Article 19(4)
Article 5 Article 21
Article 6
Article 7
Annex I Annex VIII Chapter 3 introduction and Sections I to III
Annex II Annex VIII Chapter 3 Section IV
Annex III Annex VIII Chapter 3 Section V

STATEMENT BY THE EUROPEAN PARLIAMENT AND THE COUNCIL

The European Parliament and the Council are mindful of the importance of providing accurate information to consumers, in particular when products are marked with an indication of origin, so as to protect them against fraudulent, inaccurate or misleading claims. The use of new technologies, such as electronic labelling, including radio frequency identification, may be a useful tool to provide such information while keeping pace with technical development. The European Parliament and the Council invite the Commission, when drawing up the report pursuant to Article 24 of the Regulation, to consider their impact on possible new labelling requirements, including with a view to improve the traceability of products.

Reading this document does not replace reading the official text published in the Official Journal of the European Union. We assume no responsibility for any inaccuracies arising from the conversion of the original to this format.

This text is published under EUR-Lex's own terms of reuse, not a Legalize or public-domain licence. EUR-Lex
Creative Commons Attribution 4.0 International (CC BY 4.0)
© European Union, https://eur-lex.europa.eu — Source: EUR-Lex (Publications Office of the European Union). Reused under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Only EU legislation published in the printed Official Journal of the European Union is deemed authentic; consolidated texts are reproduced here for documentation purposes and have been reformatted to Markdown.