1、Contents1 General provisions(1)2 Terms(2)3 Basic requirements(3)4 Route selection(4)5 Piping design建设部息公开(6）5.1 General requirements.(6)5.2 Piping laying(6)5.3 Rack set(7)5.4 Block valve(8)5.5 Corrosion control and thermal insulation(9)6 Piping construction and acceptance(10)6.1 General requirements
2、.(10)6.2 Material acceptance(10)6.3 Above-ground piping construction.(116.4 Crossing piping construction（l6）6.5 Above-crossing piping construction.(17)6.6 Buried piping construction(17)6.7 Piping purge and rinse（l8)6.8 Engineering acceptance（l9)7 Safety,occupational health and environmentalpr0 tectic0n(20）Appendix A Starting and stopping points of fire spacingand clearance height(22)2
