注射成型硬质聚氯乙烯（PVC-U）、氯化聚氯乙烯（PVC-C）、丙烯腈-丁二烯-苯乙烯三元共聚物（ABS）和丙烯腈-苯乙烯-丙烯酸盐三元共聚物（ASA）管件 热烘箱试验方法

Injection-moulded unplasticized poly(vinyl chloride)(PVC-U)，chlorinated poly(vinyl chloride)(PVC-C)，acrylonitrile butadiene-styrene(ABS)and acrylonitrile-styrene-acrylester(ASA)fittings--Hot oven test method