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See Chinese contents: GB/T 42701-2023 GB/T 42701-2023: Textiles -- Identification of naturally colored cottons -- Chemical staining method
This document describes a method for the identification of naturally colored cottons (including natural brown cotton and natural green cotton) using the chemical staining method. This document applies to naturally colored cottons and their pure spinning products, blended or interwoven products of naturally colored cottons and uncolored fibers.
