It is pointed out that congo-red test, dynamic heat stability test, oven test and UV lamp test are not so efficacious because the adverse factor is single, and there is some difference between the test result and the actual property.

 
  • 指出剛果紅試驗、動(dòng)態(tài)熱穩定性試驗、烘箱試驗、紫外燈照射試驗等4種試驗方法因破壞因素單一而距異型材的實(shí)際老化情況有一定差距;
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