This code is formulated for the purpose of implementing the relevant national laws and regulations, guidelines and policies in the design of gas pipeline engineering, unifying technical requirements, achieving advanced technology, reasonable economy, safety and applicability, and ensuring quality. This code is applicable to the engineering design of land gas transmission pipelines.
GB 50251-2003 history
2015GB 50251-2015 Code for Design of Gas Transmission Pipeline Engineering
2003GB 50251-2003 Code for design of gas transmission pipeline engineering