With the continuous progress and development of science and technology, electronics, semiconductor and other high-precision industries have higher and higher requirements for gas purity. In order to meet the market demand, the company has strengthened the research and development innovation of gas purification technology, and the purity of gas purification is getting higher and higher. At present, there is no gas standard of purity above ultrapure gas. In order to standardize the company's gas analysis, gas purification, purification equipment production and other related work, the company has developed the gas purity standard specification table. At present, this specification has completed the record of the company's enterprise target, striving to make the whole gas industry move towards a more standardized and rigorous road of sustainable development from point to point.