GB/T 2910.12-2023: Textiles - Quantitative chemical analysis - Part 12: Mixtures of acrylic, certain modacrylics, certain chlorofibres, certain elastane fibres with certain other fibres(method using dimethylformamide)

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Scope

This document describes a method using dimethylformamide to determine the content
of acrylic, modacrylics, chlorofibres or elastane fibres in the following bicomponent
mixtures, after removing non-fibrous matter:
- acrylic, certain modacrylics, certain chlorofibres, certain elastane fibres; and
- wool, other animal hair fibres, mulberry silk, cotton, viscose fibres, cupro fibres,
modal fibres, lyocell fibres, polyamide fibres, polyester fibres, polypropylene
fibres, elastiomultiester fibres, elastolefin fibres, melamine fibres, polypropylene/
polyamide bicomponent fibres, polyacrylate fibres and glass fibres.
This document does not apply to textiles containing wool, other animal hair fibres and
mulberry silk dyed with chromium based mordant dyes.
NOTE 1: ISO 16373-1 gives the dyestuff identification method.
NOTE 2: This method will cause great damage to some polyester fibres with a sheath-core structure
(low melting point polyester/polyester bicomponent fibres) in the filled flakes. Observe the state of
the remaining fibres after dissolution to confirm whether this method is applicable.

Basic Data

Standard ID	GB/T 2910.12-2023 (GB/T2910.12-2023)
Description (Translated English)	Textiles - Quantitative chemical analysis - Part 12: Mixtures of acrylic, certain modacrylics, certain chlorofibres, certain elastane fibres with certain other fibres(method using dimethylformamide)
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	W04
Classification of International Standard	59.080.01
Word Count Estimation	10,149
Date of Issue	2023-08-06
Date of Implementation	2024-03-01
Older Standard (superseded by this standard)	GB/T 2910.12-2009
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration