GB 50316《工業金屬管道設計規(gui)范》，根據輸(shu)送的(de)流體性(xing)質(zhi)和泄漏時造(zao)成的(de)后果將管道分為A1、A2、B、C、D五類流體管道，新(xin)版的(de)GB50316將按照新(xin)的(de)分類方法(fa)劃分。

 GB 50235《工(gong)業金(jin)屬管(guan)(guan)(guan)道(dao)工(gong)程(cheng)施工(gong)規范》，按國家(jia)有關(guan)規定劃分(fen)為GC1、GC2和(he)GC3。除(chu)壓力管(guan)(guan)(guan)道(dao)以外的其他管(guan)(guan)(guan)道(dao)，按C類(lei)(lei)流體(ti)管(guan)(guan)(guan)道(dao)和(he)D類(lei)(lei)流體(ti)管(guan)(guan)(guan)道(dao)分(fen)類(lei)(lei)。新版的GB 50235將取(qu)消GC3。

 SH/T 3059《石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)管(guan)道(dao)設計(ji)器材(cai)選用(yong)規(gui)范》與GB50517《石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)金屬管(guan)道(dao)工(gong)(gong)(gong)程施工(gong)(gong)(gong)質量(liang)驗收規(gui)范》將管(guan)道(dao)分為：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4、SHC1、SHC2、SHC3、SHC4。SH／T 3501《石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)有毒、可燃介質鋼制管(guan)道(dao)工(gong)(gong)(gong)程施工(gong)(gong)(gong)及驗收規(gui)范》包(bao)括(kuo)：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4。新版的(de)石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)管(guan)道(dao)分級（類）的(de)流(liu)體毒性(xing)將依(yi)據《危險化(hua)(hua)(hua)學品(pin)目錄》規(gui)定的(de)毒性(xing)。