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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; `! Q3 A. A- U( 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.7 R3 X. s7 e1 e+ L: }8 i: {
) ^- r* J7 q; i5 ?+ b! X另,交联的英文词是 cross-link, 不是USA中的UNITED. 8 i/ V$ _, X" O$ Z
) e ~; V+ ^. i6 Q+ u% C请参考下列标准:# y0 I; g& L* @9 B" A
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( A- {7 w% X2 x. h
' N. K. E: ^* {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) $ l/ q+ V) q6 h* Q! Z( ]
: W8 \) O7 ~8 P! L0 k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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