《工業金屬管道設計規范》（GB50316），根據輸送的流體性質和泄漏時造成的后果將管道分為A1、A2、B、C、D五類流體管道，新版的GB 50316將按照新的分類方法劃分。

《工(gong)業(ye)金屬管(guan)(guan)道工(gong)程施工(gong)規范》（GB 50235），按(an)國家有關規定劃分為GC1、GC2和GC3。除壓力管(guan)(guan)道以外的(de)其他管(guan)(guan)道，按(an)C類(lei)流體管(guan)(guan)道和D類(lei)流體管(guan)(guan)道分類(lei)。新版的(de)GB50235將取消GC3。

《石(shi)(shi)油化工(gong)(gong)(gong)(gong)(gong)管(guan)(guan)道設計器材選用規范》（SH／T 3059）與《石(shi)(shi)油化工(gong)(gong)(gong)(gong)(gong)金屬管(guan)(guan)道工(gong)(gong)(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)(gong)(gong)質(zhi)量驗收規范》（GB 50517）將管(guan)(guan)道分為：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4、SHC1、SHC2、SHC3、SHC4。《石(shi)(shi)油化工(gong)(gong)(gong)(gong)(gong)有毒、可燃介(jie)質(zhi)鋼制管(guan)(guan)道工(gong)(gong)(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)(gong)(gong)及驗收規范》（SH／T 3501）包括(kuo)：SHA1、SHA2、SHA3、SHA4、SHB1、SHB2、SHB3、SHB4。新版的(de)石(shi)(shi)油化工(gong)(gong)(gong)(gong)(gong)管(guan)(guan)道分級（類）的(de)流體毒性(xing)將依據(ju)《危(wei)險(xian)化學品目錄》中規定(ding)的(de)毒性(xing)。