GOST ISO 1833-22-2015 纺织品. 定量化学分析. 第22部分. 粘胶混合物或者某些类型的白铜或者莫代尔或者莱赛尔或者亚麻纤维 (甲酸和氯化锌法)
Textiles. Quantitative chemical analysis. Part 22. Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using formic acid and zinc chloride)