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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) N; b, M; I9 v+ o
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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.) f% V& ]. ]0 ^) v* b
" ^4 m/ x2 Q# U; E& n0 o5 [另,交联的英文词是 cross-link, 不是USA中的UNITED. 2 [# f- i, U2 b# m6 d3 n5 y" ~9 K
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请参考下列标准:" e5 w$ l# H6 z
ASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe
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. q" h+ C5 J7 J3 {: W }ISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints% \# y5 e- k* N
# m4 S& G# G3 f3 R/ S, T) _BS 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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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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