ANNEX VIIIU.K. Methods for the quantitative analysis of binary and ternary textile fibre mixtures (referred to in Article 19(1))
CHAPTER 2U.K.
METHODS FOR QUANTITATIVE ANALYSIS OF CERTAIN BINARY TEXTILE FIBRE MIXTURES U.K.
IV. Special methods U.K.
METHOD No 15U.K. CHLOROFIBRES, CERTAIN MODACRYLICS, CERTAIN ELASTANES, ACETATES, TRIACETATES AND CERTAIN OTHER FIBRES U.K.(Method using cyclohexanone)U.K.
3.APPARATUS AND REAGENTS (other than those specified in the general instructions)U.K.
3.1.ApparatusU.K.
(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).U.K.
(b)Filter crucible to contain the test specimen.U.K.
(c)Porous baffle (porosity grade 1).U.K.
(d)Reflux condenser that can be adapted to the distillation flask.U.K.
(e)Heating device.U.K.
3.2.ReagentsU.K.
(a)Cyclohexanone, boiling point 156 °C.U.K.
(b)Ethyl alcohol, 50 % by volume.U.K.
Note:U.K.
Cyclohexanone is flammable and toxic. Suitable precautions must be taken in its use.