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ČSN is a protected designation of Czech national technical standards.
Textiles - Quantitative chemical analysis - Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell with flax fibres (method using formic acid and zinc chloride)
Standard published on 1.3.2022
Selected format:Textiles - Quantitative chemical analysis - Part 24: Mixtures of polyester and certain other fibres (method using phenol and tetrachloroethane)
Standard published on 1.9.2011
Selected format:Textiles - Quantitative chemical analysis - Part 25: Mixtures of polyester with certain other fibres (method using trichloroacetic acid and chloroform)
Standard published on 1.1.2021
Selected format:Textiles - Quantitative chemical analysis - Part 26: Mixtures of melamine with certain other fibres (method using hot formic acid)
Standard published on 1.5.2021
Selected format:Textiles - Quantitative chemical analysis - Part 27: Mixtures of cellulose fibres with certain other fibres (method using aluminium sulfate)
Standard published on 1.12.2019
Selected format:Textiles - Quantitative chemical analysis - Part 28: Mixtures of chitosan with certain other fibres (method using diluted acetic acid)
Standard published on 1.11.2020
Selected format:Textiles - Quantitative chemical analysis - Part 29: Mixtures of polyamide with polypropylene/polyamide bicomponent (method using sulfuric acid)
Standard published on 1.1.2021
Selected format:Textiles - Quantitative chemical analysis - Part 1: General principles of testing
WITHDRAWN published on 1.5.2011
Selected format:Textiles - Quantitative chemical analysis - Part 2: Ternary fibre mixtures
WITHDRAWN published on 1.5.2011
Selected format:Textiles - Quantitative chemical analysis - Part 3: Mixtures of acetate with certain other fibres (method using acetone)
WITHDRAWN published on 1.11.2019
Selected format:Latest update: 2026-06-28 (Number of items: 2 284 473)
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