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发表于 2008-11-12 21:40:34
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来自: 中国上海
原帖由 freeshaw1 于 2008-11-12 11:57 发表 http://www.3dportal.cn/discuz/images/common/back.gif
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5 Z1 n: T7 c4 S) {% v版主回答不对,UPVC的U是UNPLASTIZED的缩写,未增塑的意思,通常UPVC或者PVC-U都翻译成硬聚氯乙烯,与加大量增塑剂的软PVC相对应.) m. L/ L# z T* j
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另,交联的英文词是 cross-link, 不是USA中的UNITED. 6 d/ D `! l% ]8 A& ~: x, g
( U% {8 m$ {; g& ]8 G' r请参考下列标准:
* X3 T0 e8 V& w2 u! MASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe) L4 a3 b: ]- k( ?
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ISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints
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. q' D7 z, Y% PBS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water
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ISO 21138 :2007 Plastics piping systems for non-pressure underground drainage and sewerage -- Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE)
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! b9 L3 `8 Q3 J t# k) c5 h3 ]交联聚氯乙烯的缩写是XLPVC, 版主可以以此为关键词搜索的. |
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