Lub teb chaws cov qauv rau cov roj hmab foob muaj xws li "Rubber - Cov lus pom zoo ntawm kev tsim khoom zoo ntawm cov hlua khi rau cov yeeb nkab sib txuas - Kev faib tawm thiab pawg ntawm cov tsis xws luag" (GB/T 17604-1998), uas yog sib npaug rau cov txheej txheem thoob ntiaj teb ISO 9691: 1992. "Rubber Seals - Sealing rings for water supply, drainage and sewage pipes - Material Specification" (GB/T 21873-2008) tau raug kho dua los txais yuav cov txheej txheem thoob ntiaj teb ISO 4633: 2002 thiab yuav sai sai no tag nrho los ntawm GB/T 21873-2025.
Tsis tas li ntawd, cov txheej txheem tseem muaj xws li "Rubber Seals - Sealing rings for pipe joints of 110℃hot water supply pipes - Material Specification" (GB/T 27572-2011/2025) and "Rubber Seals - Sealing rings for water supply" (Specification) H - dej phwj thiab dej phwj 3091-2000), thiab lwm yam. Cov qauv no feem ntau yog tswj hwm los ntawm Sealing Products Subcomtee ntawm National Technical Committee on Standardization of Rubber and Rubber Products (TC35SC3).
