... 1991TD≥302Elongation at breakMD≥110% TD≥110 3Hot water shrink rateMD≥40%(90°C water ,5 seconds)TD≥404Heat ... Evaporated4% acetic acid, 60°C, 2h≤30 mg/L<2.5 mg/LGB/T5009.60-2003265% ethanol, normal ... temperature ,2h≤30 mg/L<2.5 mg/LGB/T5009.60-20033n-hexane , normal ... 20036Tolylenediamine, water , 100°C, 1h≤0.004 mg/L<0.004 mg/LGB/T5009.119-2003Conclusion:the test ...