GB/T 2910.4-2009 Textiles.Quantitative chemical analysis.Part 4:Mixtures of certain protein and certain other fibers(method using hypochlorite) (English Version)
This part of GB/T 2910 specifies the method for the determination of protein fiber content in a two-component mixture of certain protein fibers and certain non-protein fibers composed of the following fibers after removal of non-fibrous substances by the hypochlorite method: wool, Chemically treated wool, other animal fibers, silk, casein regenerated protein fibers and cotton, cupro fibers, viscose fibers, modal fibers, polyacrylonitrile fibers, ammonia fibers, polyamide fibers, polyester fibers, polypropylene fibers , glass fiber and elastic fiber. If several protein fibers exist at the same time in the fabric, this method can only calculate their total amount but not their respective amounts.
GB/T 2910.4-2009 Referenced Document
GB/T 2910.1-2009 Textiles.Quantitative chemical analysis.Part 1:General principles of testing
GB/T 2910.4-2009 history
2022GB/T 2910.4-2022 Textiles—Quantitative chemical analysis—Part 4:Mixtures of certain protein fibres with certain other fibres (method using hypochlorite)
2009GB/T 2910.12-2009 Textiles.Quantitative chemical analysis.Part 12:Mixtures of acrylic,certain modacrylic,certain chlorofibres,certain elastanes and certain other fibres(method using dimethylformamide)
1997GB/T 2910-1997 Textile--Binary fibre mixtures--Quantitative chemical analysis