DIN EN ISO 1833-7-2011 纺织品.定量化学分析.第7部分:聚酰胺和某些其它纤维的混合(甲酸法)(ISO 1833-7-2006);德文版本EN ISO 1833-7-2010
Textiles - Quantitative chemical analysis - Part 7: Mixtures of polyamide and certain other fibres (method using formic acid) (ISO 1833-7:2006); German version EN ISO 1833-7:2010