GB/T 2910.11-2024 Textiles—Quantitative chemical analysis—Part 11:Mixtures of certain cellulose fibres with certain other fibres(method using sulfuric acid)

Scope

This document describes a method for determining the content of cellulose fibers in a two-component mixture of certain cellulose fibers and certain other fibers after the removal of non-fiber substances using the sulfuric acid method:
—— Natural cellulose fibers and regenerated cellulose fibers, such as cotton fibers, flax fibers, hemp fibers, ramie fibers, viscose fibers, cuprammonium fibers, modal fibers, and lyocell fibers, and
—— Polyester fibers, polypropylene fibers, polyethylene fibers, polyester composite elastic fibers, polyolefin elastic fibers, and polypropylene/polyamide composite fibers.

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