This specification is applicable to the construction of new, expanded, and reconstructed natural gas gathering and transportation pipelines where the HS volume fraction in natural gas is greater than or equal to 5%.
JB/T 3223 Rules of quality management of welding materials*, 2017-11-07 Update
SY/T 0422 Specification for construction of oil and gas field gathering and transmission pipeline
SY/T 0599 Sulfide stress cracking resistant metallic material requirements for gas surface equipment*, 2019-03-01 Update
SY/T 4102 Specification for inspection and installation of valve*, 2013-11-28 Update
SY/T 4114 Technical specifications for drying construction of natural gas pipelines and liquefied natural gas stations (plants)*, 2017-05-01 Update
SY/T 4117 Technical specifications for welding of gathering and transportation pipelines in gas fields with high hydrogen sulfide content*, 2016-12-05 Update
SY/T 5257 Steel bends for oil and gas transmission*, 2012-08-23 Update
SY/T 4119-2010 history
2016SY/T 4119-2016 Technical specifications for the construction of gathering and transportation pipeline projects for gas fields with high hydrogen sulfide content
2010SY/T 4119-2010 Technical code for construction of gathering and transmission pipeline in highly hydrogen sulfide gas field