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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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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.! ^, K& u) k, l. ^1 a3 u
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另,交联的英文词是 cross-link, 不是USA中的UNITED.
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0 p7 @4 a% e6 M/ a- Q请参考下列标准:: D2 Y9 [, M. a- e9 q0 y
ASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe
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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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BS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water8 c/ K( X4 ~5 U" R+ I% T: O
9 C1 m3 J A/ ?% h- v0 k4 [* R7 ]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) $ ?4 i, B# s1 O0 L$ [
* i# D: J6 v; f% Z8 b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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