GB 50235《工(gong)(gong)(gong)業(ye)金屬管(guan)(guan)(guan)道(dao)(dao)(dao)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)規(gui)范》配套使用(yong)GB50184《工(gong)(gong)(gong)業(ye)金屬管(guan)(guan)(guan)道(dao)(dao)(dao)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)質(zhi)量驗收規(gui)》和GB 50236《現(xian)場設備、工(gong)(gong)(gong)業(ye)管(guan)(guan)(guan)道(dao)(dao)(dao)焊接工(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)規(gui)范》。工(gong)(gong)(gong)業(ye)金屬壓(ya)力管(guan)(guan)(guan)道(dao)(dao)(dao)應(ying)按TSG D001《壓(ya)力管(guan)(guan)(guan)道(dao)(dao)(dao)安全技術監察規(gui)程(cheng)(cheng)(cheng)-工(gong)(gong)(gong)業(ye)管(guan)(guan)(guan)道(dao)(dao)(dao)》的規(gui)定(ding)劃分為GC1、GC2、GC3三(san)個等級(ji)。除壓(ya)力管(guan)(guan)(guan)道(dao)(dao)(dao)以(yi)外的其他(ta)管(guan)(guan)(guan)道(dao)(dao)(dao)，應(ying)按C類(lei)流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)和D類(lei)流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)分類(lei)。D類(lei)流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)指(zhi)不可燃(ran)、無(wu)(wu)毒或毒性(xing)為輕度危(wei)害(hai)程(cheng)(cheng)(cheng)度、設計(ji)壓(ya)力小于或等于1.0MPa。和設計(ji)溫度高(gao)于一20℃但(dan)不高(gao)于185℃的流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)。C類(lei)流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)指(zhi)不包括D類(lei)流(liu)(liu)體(ti)(ti)的不可燃(ran)、無(wu)(wu)毒或毒性(xing)為輕度危(wei)害(hai)程(cheng)(cheng)(cheng)度的流(liu)(liu)體(ti)(ti)管(guan)(guan)(guan)道(dao)(dao)(dao)。