![]() Quantitative chemical analysis of textiles mixtures of meta aromatic polyamide fibers and para aromatic polyamide fibers (lithium chloride / N, N-Dimethylacetamide method) 纺织品 定量化学分析 间位芳香族聚酰胺纤维与对位芳香族聚酰胺纤维的混合物(氯化锂/N,N-二甲基乙酰胺法) |
![]() (Plastics - aromatic isocyanates for the production of polyurethane - Part 5: Determination of acidity - amendment No. 1) 塑料 聚氨酯生产用芳香族异氰酸酯 第5部分:酸度的测定《第1号修改单》 |
![]() (Plastics - aromatic isocyanates for the production of polyurethane - Part 4: Determination of isocyanate content - amendment No. 1) 塑料 聚氨酯生产用芳香族异氰酸酯 第4部分:异氰酸根含量的测定《第1号修改单》 |
![]() Determination of harmful substances in textile dyeing and finishing auxiliaries - Part 4: Determination of polycyclic aromatic hydrocarbons - GC/MS method 纺织染整助剂中有害物质的测定 第4部分:稠环芳烃化合物(PAHs)的测定 气相色谱-质谱法 |
![]() Determination of 16 polynuclear aromatic hydrocarbons in seawater by GC-MS 海水中16种多环芳烃的测定 气相色谱-质谱法 |
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