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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.3 n$ \, @" I" ~( P3 Y
3 G% b! b7 J+ J- d6 F# D* S, r4 M* a另,交联的英文词是 cross-link, 不是USA中的UNITED.
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请参考下列标准:
% Z" ]. \3 P) n2 _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: W& X2 ]( n# D
% I ~; _, Q( O7 \4 M0 g2 X E2 SBS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water) Y3 S6 z( o" y/ K1 z# v, y1 W2 D
]9 @/ w/ F' sISO 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) 7 O0 `+ c# b7 t3 j( \: m' \: I
Q2 g0 i6 c) I k/ [3 U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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