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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: Y' A/ h2 ^# ]
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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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另,交联的英文词是 cross-link, 不是USA中的UNITED.
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: Y+ \8 N W- ` X T请参考下列标准:( _5 {9 V, @: w
ASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe! T* O0 r/ F5 m- Y4 W$ z
" v8 F# Y5 B' `5 SISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints( D8 x9 H. P- ?( K
# I# u7 K4 h/ ^7 a0 R4 NBS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water, _. Z, N- g* a8 r' I
5 X: |% M4 [5 tISO 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) # I& B$ V# T8 W3 l% ?' f
) p/ ^1 M) C, @/ T( x$ z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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