13/30240170 DC BS ISO 16365-3 塑料 模塑和擠塑用熱塑性聚氨酯 第3部分 通過測定酯基含量區(qū)分醚型聚氨酯和酯型聚氨酯
BS ISO 16365-3. Plastics. Thermoplastic polyurethanes for moulding and extrusion. Part 3. Distinction between ether and ester polyurethanes by determination of the ester group content