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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' ? l3 c0 H4 t9 A; w) a9 y! }8 \
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) E4 D! m. H& a9 x9 N% l# B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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另,交联的英文词是 cross-link, 不是USA中的UNITED. $ R$ M; m' B8 n" @) j
7 ^( D9 z$ l2 _3 `( y$ b, L2 r( f请参考下列标准:
+ }/ K( Y* E# G( v/ X; }% m1 iASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe
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5 O+ h$ _: i( _9 `ISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints/ X; W+ Y' y0 U! Q, l" n! ^1 X
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BS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water4 r/ l# S g* L. ]
9 I2 A3 L- `9 A) FISO 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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* r* m% u+ B$ C, p) ?7 q1 J3 _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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