GB 50235《工(gong)(gong)(gong)業金屬(shu)管(guan)道(dao)工(gong)(gong)(gong)程施(shi)(shi)工(gong)(gong)(gong)規(gui)(gui)范(fan)(fan)》配套使用GB50184《工(gong)(gong)(gong)業金屬(shu)管(guan)道(dao)工(gong)(gong)(gong)程施(shi)(shi)工(gong)(gong)(gong)質量驗收規(gui)(gui)》和GB 50236《現場設(she)(she)備、工(gong)(gong)(gong)業管(guan)道(dao)焊接工(gong)(gong)(gong)程施(shi)(shi)工(gong)(gong)(gong)規(gui)(gui)范(fan)(fan)》。工(gong)(gong)(gong)業金屬(shu)壓(ya)力(li)(li)管(guan)道(dao)應按TSG D001《壓(ya)力(li)(li)管(guan)道(dao)安(an)全技術(shu)監察規(gui)(gui)程-工(gong)(gong)(gong)業管(guan)道(dao)》的(de)規(gui)(gui)定劃分為(wei)GC1、GC2、GC3三(san)個等級(ji)。除壓(ya)力(li)(li)管(guan)道(dao)以外的(de)其他管(guan)道(dao)，應按C類(lei)流(liu)(liu)體(ti)管(guan)道(dao)和D類(lei)流(liu)(liu)體(ti)管(guan)道(dao)分類(lei)。D類(lei)流(liu)(liu)體(ti)管(guan)道(dao)指不(bu)可燃、無(wu)毒或(huo)毒性(xing)為(wei)輕度危害程度、設(she)(she)計(ji)壓(ya)力(li)(li)小于或(huo)等于1.0MPa。和設(she)(she)計(ji)溫度高于一20℃但不(bu)高于185℃的(de)流(liu)(liu)體(ti)管(guan)道(dao)。C類(lei)流(liu)(liu)體(ti)管(guan)道(dao)指不(bu)包括(kuo)D類(lei)流(liu)(liu)體(ti)的(de)不(bu)可燃、無(wu)毒或(huo)毒性(xing)為(wei)輕度危害程度的(de)流(liu)(liu)體(ti)管(guan)道(dao)。