GB 50316《工業金屬(shu)管道(dao)設計規范》，根據輸(shu)送的(de)流(liu)體(ti)性(xing)質和泄漏時造成的(de)后果將管道(dao)分(fen)為A1、A2、B、C、D五類(lei)流(liu)體(ti)管道(dao)，新(xin)版(ban)的(de)GB50316將按照新(xin)的(de)分(fen)類(lei)方法劃分(fen)。

 GB 50235《工(gong)業金屬管道工(gong)程施工(gong)規(gui)范》，按國家有關(guan)規(gui)定劃分(fen)為GC1、GC2和GC3。除壓力管道以外的其他(ta)管道，按C類流體管道和D類流體管道分(fen)類。新版的GB 50235將取消GC3。

 SH/T 3059《石(shi)(shi)油化(hua)工(gong)(gong)(gong)管(guan)道設(she)計器材(cai)選(xuan)用規(gui)(gui)范(fan)(fan)》與GB50517《石(shi)(shi)油化(hua)工(gong)(gong)(gong)金屬管(guan)道工(gong)(gong)(gong)程施工(gong)(gong)(gong)質量(liang)驗(yan)收(shou)規(gui)(gui)范(fan)(fan)》將(jiang)管(guan)道分為：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4、SHC1、SHC2、SHC3、SHC4。SH／T 3501《石(shi)(shi)油化(hua)工(gong)(gong)(gong)有毒、可燃介質鋼(gang)制管(guan)道工(gong)(gong)(gong)程施工(gong)(gong)(gong)及驗(yan)收(shou)規(gui)(gui)范(fan)(fan)》包括：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4。新版的(de)(de)石(shi)(shi)油化(hua)工(gong)(gong)(gong)管(guan)道分級（類）的(de)(de)流(liu)體(ti)毒性將(jiang)依據《危險化(hua)學(xue)品目錄》規(gui)(gui)定的(de)(de)毒性。