Delivery: 3 seconds (Download full-editable-PDF + Invoice). Quotation: Click GB/T 2910.21-2009>>Add to cart>>Quote Editable-PDF Preview (Reload if blank, scroll for next page)
See Chinese contents: GB/T 2910.21-2009 GB/T 2910.21-2009: Textiles -- Quantitative chemical analysis -- Part 21: Mixtures of chlorofibre, certain modacrylics, certain elastane, acetates, triacetates and certain other fibers (method of using dimethylacetamide)
This Part of GB/T 2910 specifies the method for determining the content of chlorinated fibers, modified polyacrylonitrile fibers, elastic fibers, acetate fibers, triacetate fibers in a mixture composed of the following fibers after removing non-fiber substances by the cyclohexanone method: - Acetate fibers, triacetate fibers, chlorinated fibers, certain modified polyacrylonitrile fibers, certain elastic fibers AND - Wool, animal hair, silk, cotton, cuprammonium fibers, modal fibers, viscose fibers, polyamide fibers, polyacrylonitrile fibers, glass fibers. When containing modified polyacrylonitrile fibers or elastic fibers, preliminary tests must be conducted to determine whether the fibers are completely soluble in the reagent. The methods specified in GB/T 2910.13 or GB/T 2910.17 may also be used to analyze mixtures containing chlorinated fibers.
