Harmonization of gas quality in China

摘要

According to gas status in China and develop trend of international standard involved, key contents of GB/T 13611-2018 "Classification and basic characteristics of urban gas" were analyzed, and gas categories and control parameters of characteristic index were studied further, some opinions and suggestions were put forward, which formed the new related basic standard for urban gas classification in China. The national standards for gas quality control in China were illustrated and analyzed mainly by GB 17820 "Natural gas", GB/Z 33440 "General requirements for interchangeability of natural gas entering long-distance pipeline network" and GB/T 13611 "Classification and basic characteristics of urban gas". The quality fluctuation range of gas which was used in long-distance pipeline network in China and urban gas application terminal were proposed.