关于全面推广使用UPVC管材的通知. 建科发［１９９6］２３３号. 各
市建委 ... 省级有关部门：. 硬聚氯乙烯(UPVC)撑水管、雨水管具有重量
轻、运输安装劳动强度低、施工方便、工效高、耐腐蚀、内壁光滑
不. ... （http://www.zctpc.com/file/p363.htm）

可选用卫生级硬聚氯乙烯管(PVC—U)作为给水管，{马瑞巧，熊振湖. 21世纪城市污水资源化战略的科学实施[J]. 天津城市建设学院学报 第8卷 第4期:273-276.}

看上去好像定义是一样的！

UPVC 全称聚氯乙烯，英文名为Unplasticized Polyvinal Chloride

PVC-U used to be called uPVC (for unplasticised PVC) but in 1990 the name was changed to conform to the international naming conventions for polymers. This was so that polymer databases would work correctly.

The standard international name of any plastic is now in two parts: the basic material name is given first and any special properties are given after a hyphen, ALL THE LETTERS ARE IN CAPITALS!

Low Density Polyethylene (old name - LDPE), Linear Low Density Polyethylene (old name - LLDPE) and High Density Polyethylene (old name - HDPE) are all types of polyethylene (PE) but would not appear to be such if indexed alphabetically in a database.

The new names have the polyethylene name first and the special properties second. The new abbreviations are Low Density Polyethylene (PE-LD), Linear Low Density Polyethylene (PE-LLD) and High Density Polyethylene (PE-HD). This means that families of polymers are kept together in a database.

The new correct name for uPVC is therefore PVC-U where PVC is the base polymer and the U refers to the unplasticised version of PVC. All the letters in the name are in upper case and PVC-u is incorrect!

If you see someone using PVC-u you now know that they are incorrect and dont know what they are talking about. Keep an eye out for it - even the most respectable people make the mistake.

PVC—U是新的命名代替了以前的UPVC
但是不能写成PVC—u!(siceman 的意思)

呵呵 楼上的高啊！楼上的楼上更高！

谢谢siceman

一样的管子。

upvc管亦称硬聚氯乙稀管，u-pvc管，是一种耐腐蚀强，耐酸碱盐油介质侵蚀，质量轻，有一定的机械强度，水力条件好，安装方便，但易老化，耐高温，但不能承受冲击，适用于生活水系统，DN50以下管件连接，DN65以上采用较圈连接。

pvc-u管亦称硬质聚氯乙稀管，是一种由挤压机一次挤出成型，内壁光滑，外壁带有垂直加强筋的新型排水管材，适用于小区排水系统中，采用“T”型橡胶圈接口
回答者：zwg33 - 魔法师 四级 3-28 13:21


我在百度上找到的，不知道他所说的是向SICEMAN所说even the most respectable people make the mistake.

:kiss: SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

:call: ASSCCCCCCCCCCCCCCCCCCCCCCCCZZZZZZZZZZZZZZZZ:loveliness: Z