DIN EN 681-1:2006 弹性密封件.给排水管道连接密封件材料要求.第1部分:硫化橡胶(包括修改件A1-1998 + A2-2002 + A3-2005和技术勘误AC-2002)
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber(includes Amendments A1:1998 + A2:2002 + A3:2005 and Corrigendum AC:2002); English version of DIN EN 681-1:2006-11