ISO 3474-1976 标准详情
- 标准号:ISO 3474-1976
- 中文标题:未增塑聚氯乙烯(PVC)管;不透明性测量和规范
- 英文标题:unplasticized polyvinyl chloride (pvc) pipes; specification and measurement of opacity
- 标准类别:国际标准化组织标准ISO
- 发布日期:1976-04-01
Specification of the acceptable limit of light, which may pass through the wall of the pipe.The determination is carried out with a light source and a photoelectric cell. The percentage of light, which is passing through the test piece, shall be less
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