Determination of harmful substances in textile dyeing and finishing auxiliaries—Part 6:Determination of isocyanate groups in polyurethane prepolymers
MOD ISO 11909:2007
全国染料标准化技术委员会印染助剂分技术委员会(SAC/TC 134/SC 1)
GB/T 29493的本部分规定了纺织染整助剂聚氨酯预聚物中异氰酸酯基含量的测定方法。
本部分适用于由甲苯二异氰酸酯（TDI）、二苯基甲烷二异氰酸酯（MDI）等二异氰酸酯单体合成的聚氨酯预聚物中异氰酸酯基含量的测定方法。
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