Wonke amapayipi ensimbi yekhabhoni asetshenziswa emazingeni okushisa aphansi (ngaphansi kuka--20°C) kufanele asebenzise indinganiso ye-GB6479, echaza kuphela izidingo zokuqina komthelela wokushisa okuphansi kwezinto.

GB3087futhiGB5310izindinganiso ziyizindinganiso ezibekwe ngokukhethekile amapayipi ensimbi ebhoyila. "Imithethonqubo Yokuqapha Ukuphepha Kwamabhoyila" igcizelela ukuthi wonke amapayipi axhunywe kumabhoyila angaphansi kokulawulwa, futhi ukusetshenziswa kwezinto zawo kanye nezindinganiso kufanele kuhambisane "Nemithethonqubo Yokuqapha Ukuphepha Kwamabhoyila". Ngakho-ke, amabhoyila, izitshalo zamandla, imishini yokushisa kanye neyokukhiqiza i-petrochemical isetshenziswa. Amapayipi omusi womphakathi (ahlinzekwa uhlelo) kufanele amukele amazinga e-GB3087 noma e-GB5310.

Kuyafaneleka ukuqaphela ukuthi intengo yamapayipi ensimbi anezindinganiso zamapayipi ensimbi zekhwalithi enhle nayo iphakeme kakhulu. Isibonelo, intengo ye-GB9948 icishe ibe yi-1/5 ephezulu kuneyezinto ze-GB8163. Ngakho-ke, lapho kukhethwa amazinga ezinto zamapayipi ensimbi, kufanele icatshangelwe ngokuphelele ngokwemibandela yokusetshenziswa. Kumele ithembeke futhi ithembeke. Ukuze ibe yezomnotho. Kufanele futhi kuqashelwe ukuthi amapayipi ensimbi ngokwezindinganiso ze-GB/T20801 kanye ne-TSGD0001, GB3087 kanye ne-GB8163 akufanele asetshenziselwe amapayipi e-GC1 (ngaphandle kokuthi ngokwe-ultrasonic, ikhwalithi ayiphansi kunezinga le-L2.5, futhi ingasetshenziswa ku-GC1 ngokucindezela komklamo okungengaphezu kwepayipi engu-4.0Mpa (1).