2.

Chapter 2 is amended as follows: (a) The Special Methods – Summary Table is replaced by the following: ‘2. SPECIAL METHODS — SUMMARY TABLE Methods Field of application Reagent Soluble component Insoluble component No 1 Acetate Certain other fibres Acetone No 2 Certain protein fibres Certain other fibres Hypochlorite No 3 Viscose, cupro or certain types of modal Cotton or elastolefin Formic acid and zinc chloride No 4 Polyamide or nylon Certain other fibres Formic acid, 80 % m/m No 5 Acetate Triacetate or elastolefin Benzyl alcohol No 6 Triacetate or polylactide Certain other fibres Dichloromethane No 7 Certain cellulose fibres Polyester, elastomultiester or elastolefin Sulphuric acid, 75 % m/m No 8 Acrylics, certain modacrylics or certain chlorofibres Certain other fibres Dimethylformamide No 9 Certain chlorofibres Certain other fibres Carbon disulphide/acetone, 55,5/44,5 v/v No 10 Acetate Certain chlorofibres or elastolefin Glacial acetic acid No 11 Silk Wool, hair or elastolefin Sulphuric acid, 75 % m/m No 12 Jute Certain animal fibres Nitrogen content method No 13 Polypropylene Certain other fibres Xylene No 14 Certain other fibres Chlorofibres (homopolymers of vinyl chloride) or elastolefin Concentrated sulphuric acid method No 15 Chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates Certain other fibres Cyclohexanone’ (b) Point 1.2 of method No 1 is replaced by the following: ‘2. wool (1), animal hair (2 and 3), silk (4), cotton (5), flax (7) true hemp (8), jute (9), abaca (10), alfa (11), coir (12), broom (13), ramie (14), sisal (15), cupro (21), modal (22), protein (23), viscose (25), acrylic (26), polyamide or nylon (30), polyester (34) elastomultiester (45) and elastolefin (46). In no circumstances is the method applicable to acetate fibres which have been deacetylated on the surface.’ (c) Point 1.2 of method No 2 is replaced by the following: ‘2. cotton (5), cupro (21), viscose (25), acrylic (26), chlorofibres (27), polyamide or nylon (30), polyester (34), polypropylene (36), elastane (42), glass fibre (43) elastomultiester (45) and elastolefin (46). If different protein fibres are present, the method gives the total of their amounts but not their individual quantities.’ (d) Point 1.2 of method No 3 is replaced by the following: ‘2. cotton (5) and elastolefin (46).’ (e) Point 5 of method No 3 is replaced by the following: ‘5. CALCULATION AND EXPRESSION OF RESULTS Calculate the results as described in the general instructions. The value of “d” is 1,02 for cotton and 1,00 for elastolefin.’ (f) Point 1.2 of method No 4 is replaced by the following: ‘2. wool (1), animal hair (2 and 3), cotton (5), cupro (21), modal (22), viscose (25), acrylic (26), chlorofibre (27), polyester (34), polypropylene (36), glass fibre (43), elastomultiester (45) and elastolefin (46). As mentioned above, this method is also applicable to mixtures with wool, but when the wool content exceeds 25 %, method No 2 should be applied (dissolving wool in a solution of alkaline sodium hypochlorite).’ (g) Point 1 of method No 5 is replaced by the following: ‘1. FIELD OF APPLICATION This method is applicable, after removal of non-fibrous matter, to binary mixtures of: — acetate (19) with — triacetate (24) and elastolefin (46).’ (h) Method No 6 is amended as follows: (i) Point 1.2 is replaced by the following: ‘2. wool (1), animal hair (2 and 3), silk (4), cotton (5), cupro (21), modal (22), viscose (25), acrylic (26), polyamide or nylon (30), polyester (34), glass fibre (43) elastomultiester (45) and elastolefin (46). Note Triacetate fibres which have received a finish leading to partial hydrolysis cease to be completely soluble in the reagent. In such cases, the method is not applicable’. (ii) Point 5 is replaced by the following: ‘5. CALCULATION AND EXPRESSION OF RESULTS Calculate the results as described in the general instructions. The value of “d” is 1,00, except in the case of polyester, elastomultiester and elastolefin, for which the value of “d” is 1,01.’ (i) Point 1.2 of method No 7 is replaced by the following: ‘2. polyester (34), elastomultiester (45) and elastolefin (46).’ (j) Point 1.2 of method No 8 is replaced by the following: ‘2. wool (1), animal hair (2 and 3), silk (4), cotton (5), cupro (21), modal (22), viscose (25), polyamide or nylon (30), polyester (34), elastomultiester (45) and elastolefin (46). It is equally applicable to acrylics, and certain modacrylics, treated with pre-metallised dyes, but not to those dyed with afterchrome dyes.’ (k) Point 1.2 of method No 10 is replaced by the following: ‘2. certain chlorofibres (27) namely polyvinyl chloride fibres, whether after-chlorinated or not, and elastolefin (46).’ (l) Method No 11 is amended as follows: (i) Point 1.2 is replaced by the following: ‘2. wool (1), animal hair (2 and 3) and elastolefin (46)’. (ii) Point 5 is replaced by the following: ‘5. CALCULATION AND EXPRESSION OF RESULTS Calculate the results as described in the general instructions. The value of “d” is 0,985 for wool and 1,00 for elastolefin.’ (m) Method No 14 is amended as follows: (i) Point 1.1 is replaced by the following: ‘1. chlorofibres (27) based on homopolymers of vinyl chloride, whether after-chlorinated or not, elastolefin (46) with’ (ii) Point 2 is replaced by the following: ‘2. PRINCIPLE The constituent other than the chlorofibre or the elastolefin (i.e. the fibres mentioned in paragraph 1.2) 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 or the elastolefin, 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.’