GB 50235《工(gong)(gong)業(ye)金屬管(guan)(guan)(guan)(guan)道(dao)工(gong)(gong)程施工(gong)(gong)規(gui)范(fan)》配套使用GB50184《工(gong)(gong)業(ye)金屬管(guan)(guan)(guan)(guan)道(dao)工(gong)(gong)程施工(gong)(gong)質量(liang)驗收規(gui)》和(he)GB 50236《現場設備、工(gong)(gong)業(ye)管(guan)(guan)(guan)(guan)道(dao)焊接(jie)工(gong)(gong)程施工(gong)(gong)規(gui)范(fan)》。工(gong)(gong)業(ye)金屬壓(ya)力(li)(li)管(guan)(guan)(guan)(guan)道(dao)應按TSG D001《壓(ya)力(li)(li)管(guan)(guan)(guan)(guan)道(dao)安全技術(shu)監察(cha)規(gui)程-工(gong)(gong)業(ye)管(guan)(guan)(guan)(guan)道(dao)》的(de)(de)規(gui)定劃分(fen)為GC1、GC2、GC3三(san)個等級。除壓(ya)力(li)(li)管(guan)(guan)(guan)(guan)道(dao)以外的(de)(de)其他管(guan)(guan)(guan)(guan)道(dao)，應按C類(lei)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)和(he)D類(lei)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)分(fen)類(lei)。D類(lei)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)指不可燃、無(wu)毒(du)(du)或(huo)(huo)(huo)毒(du)(du)性為輕(qing)度(du)(du)危害程度(du)(du)、設計(ji)壓(ya)力(li)(li)小于(yu)或(huo)(huo)(huo)等于(yu)1.0MPa。和(he)設計(ji)溫度(du)(du)高(gao)于(yu)一20℃但不高(gao)于(yu)185℃的(de)(de)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)。C類(lei)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)指不包括D類(lei)流(liu)(liu)(liu)體(ti)的(de)(de)不可燃、無(wu)毒(du)(du)或(huo)(huo)(huo)毒(du)(du)性為輕(qing)度(du)(du)危害程度(du)(du)的(de)(de)流(liu)(liu)(liu)體(ti)管(guan)(guan)(guan)(guan)道(dao)。