IS 18543 : 2024/ISO 1833-21 : 2019 Textiles - Quantitative Chemical Analysis - Mixtures of Chlorofibres, Certain Modacrylics, Certain Elastanes, Acetates, Triacetates with Certain other Fibres Method Using Cyclohexanone

NATIONAL FOREWORD

This Indian Standard which is identical to ISO 1833-21 : 2019 'Textiles - Quantitative chemical analysis - Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates with certain other fibres (method using cyclohexanone)' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Chemical Methods of Test Sectional Committee and approval of the Textiles Division Council.

The text of ISO standard has been approved as suitable for publication as Indian Standard without deviations. Certain conventions are however not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appears referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.