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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.
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+ ~+ }# Y2 n& G9 D另,交联的英文词是 cross-link, 不是USA中的UNITED.
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8 e: r$ L! W. Q: |+ \" S# q请参考下列标准:
( s1 B0 A1 M9 K7 y% |; PASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe: u/ L1 @1 r u5 x9 [) N# j8 O' U
0 p8 G) v: C5 I5 I! _, {ISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints! E9 C2 Y! D& S$ r& i+ o
7 d+ m# a' a5 B& o# EBS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water Y( Y0 l# | {* A5 z7 M
% ]0 n+ m. U4 v! G! UISO 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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0 R2 T: I6 X, C3 K( ], n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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