GB 50235《工(gong)業(ye)金屬(shu)管(guan)(guan)道(dao)(dao)(dao)工(gong)程(cheng)(cheng)施(shi)工(gong)規(gui)范》配套(tao)使用GB50184《工(gong)業(ye)金屬(shu)管(guan)(guan)道(dao)(dao)(dao)工(gong)程(cheng)(cheng)施(shi)工(gong)質量驗收規(gui)》和GB 50236《現場設(she)備、工(gong)業(ye)管(guan)(guan)道(dao)(dao)(dao)焊接工(gong)程(cheng)(cheng)施(shi)工(gong)規(gui)范》。工(gong)業(ye)金屬(shu)壓(ya)力管(guan)(guan)道(dao)(dao)(dao)應(ying)(ying)按TSG D001《壓(ya)力管(guan)(guan)道(dao)(dao)(dao)安全技術(shu)監(jian)察規(gui)程(cheng)(cheng)-工(gong)業(ye)管(guan)(guan)道(dao)(dao)(dao)》的(de)(de)規(gui)定劃(hua)分為(wei)(wei)(wei)GC1、GC2、GC3三個等級。除壓(ya)力管(guan)(guan)道(dao)(dao)(dao)以(yi)外的(de)(de)其(qi)他管(guan)(guan)道(dao)(dao)(dao)，應(ying)(ying)按C類(lei)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)和D類(lei)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)分類(lei)。D類(lei)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)指(zhi)不可(ke)燃、無毒或毒性為(wei)(wei)(wei)輕度危(wei)害(hai)程(cheng)(cheng)度、設(she)計(ji)壓(ya)力小于(yu)或等于(yu)1.0MPa。和設(she)計(ji)溫度高于(yu)一20℃但不高于(yu)185℃的(de)(de)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)。C類(lei)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)指(zhi)不包括D類(lei)流(liu)體(ti)(ti)(ti)的(de)(de)不可(ke)燃、無毒或毒性為(wei)(wei)(wei)輕度危(wei)害(hai)程(cheng)(cheng)度的(de)(de)流(liu)體(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)。