GB 50235《工(gong)(gong)(gong)業(ye)金屬管(guan)(guan)道(dao)(dao)(dao)工(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)規范》配(pei)套(tao)使用(yong)GB50184《工(gong)(gong)(gong)業(ye)金屬管(guan)(guan)道(dao)(dao)(dao)工(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)質量驗收規》和GB 50236《現(xian)場設備、工(gong)(gong)(gong)業(ye)管(guan)(guan)道(dao)(dao)(dao)焊接工(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)規范》。工(gong)(gong)(gong)業(ye)金屬壓(ya)力(li)管(guan)(guan)道(dao)(dao)(dao)應按TSG D001《壓(ya)力(li)管(guan)(guan)道(dao)(dao)(dao)安全技術(shu)監察規程(cheng)(cheng)-工(gong)(gong)(gong)業(ye)管(guan)(guan)道(dao)(dao)(dao)》的(de)規定劃分(fen)為GC1、GC2、GC3三個等級。除壓(ya)力(li)管(guan)(guan)道(dao)(dao)(dao)以外的(de)其他(ta)管(guan)(guan)道(dao)(dao)(dao)，應按C類流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)和D類流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)分(fen)類。D類流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)指不可燃、無(wu)毒(du)或毒(du)性為輕度(du)危(wei)(wei)害程(cheng)(cheng)度(du)、設計壓(ya)力(li)小于或等于1.0MPa。和設計溫度(du)高于一20℃但不高于185℃的(de)流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)。C類流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)指不包括D類流體(ti)(ti)(ti)(ti)(ti)的(de)不可燃、無(wu)毒(du)或毒(du)性為輕度(du)危(wei)(wei)害程(cheng)(cheng)度(du)的(de)流體(ti)(ti)(ti)(ti)(ti)管(guan)(guan)道(dao)(dao)(dao)。