GB/T 42699.1-2023Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction (English PDF)

1 Scope

This document describes the determination of sheep wool, cashmere, yak wool and their blends in textiles by liquid chromatography-mass spectrometry (LC-ESI-MS):

Qualitative and quantitative analysis methods of substance content:

This document applies to all kinds of textile products containing animal hair fibers and their mixtures:

This document does not apply to the identification of mixtures of animal fibers of the same species (such as mixtures of cashmere and mohair):

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

GB/T 2910 (all parts) Quantitative chemical analysis of textiles [ISO 1833 (all parts)]

Note: See Appendix A for the degree of consistency between the various parts of GB/T 2910 and ISO 1833:

GB/T 6529 Standard atmosphere for conditioning and testing textiles (GB/T 6529-2008, ISO 139:2005, MOD)

GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)

GB/T 40905 (all parts) Quantitative analysis of textile cashmere, sheep wool, other special animal fibers and their mixtures

[ISO 17751 (all parts)]

Note: GB/T 40905:1-2021 Quantitative analysis of cashmere, sheep wool, other special animal fibers and their mixtures in textiles - Part 1: Optical microscopy

Microscope method (ISO 17751-1:2016, MOD);

GB/T 40905:2-2022 Quantitative analysis of cashmere, sheep wool, other special animal fibers and their mixtures in textiles - Part 2: Scanning Electron

Mirror method (ISO 17751-2:2016, MOD):

GSB16-2262-2008 Cashmere appearance map

3 Terms and Definitions

The following terms and definitions apply to this document:

3:1 animal hair fiber animalhairfibre

Animal hair follicles grow fibers that have a multicellular structure and are composed of keratin:

Examples: cashmere, sheep wool, yak wool, etc:

3:2

A chemical analysis technique that combines the physical separation of liquid chromatography with the mass analysis of mass spectrometry: […]