CNS 3896-1992 - 中外标准 - - 1975/12 - 现行
ISO 3460-1975 - 中外标准 - - 1975/12 - 作废
The main dimensions of adapters for solvent (cold) welding and the inside diameters of backing flanges for PVC-pressure pipes are specified. Applicable to pipe sizes from 16 to 160 mm (outside diameter) and for nominal pressure of 1 MPa.
ISO 3212-1975 - 中外标准 - - 1975/9 - 废止
ISO 1068-1975 - 中外标准 - - 1975/6 - 现行
Specification of a method for the determination of the bulk density of PVC-polymers, densified by vibration under specified conditions. A weighed test portion is filled into a measuring cylinder and densified by means of a specified vibration apparatus. Calculation of the apparent bulk density from the weight and the measured volume after densification.
物理试验体密度热塑性聚合物塑料测量聚氯乙烯热塑性树脂Bulk densityMeasurementPhysical testingPlasticsPolyvinyl chlorideThermoplastic polymers