The General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration have approved a gas analysis standard that the Chemical Industry Southwest Research & Design Institute drew up under the title “Determination of sulfide by flame photometry and vapor phase chromatography”. It accords with the Approved National Standards of China (No 24, 2012).
The new standards are a refection of China’s progress in meeting international standards on sulfide in natural gases and gas fuels, as determined by flame photometry and vapor phase chromatography, which the ISO and ASTM started using in the 1990s.
This new SWRDICI approach uses a linear automatic data processor to solve the problem of linear processing in the identification device, which it considers better than the ISO and ASTM approach. The total amount of sulfur and sulfide in various forms can be determined by this approach, putting it at the advanced level internationally.
The new approach was developed in response to increasingly strict requirements being placed on the analysis of sulfide in gases, and increased interest in the comprehensive utilization of industrial exhaustive gases, yellow phosphorus tail gas, coke oven gas, and methanol synthesis, and recycling.
It also uses reverse blowing technology for the new standards, and indication that SWRDICI is now an international leader in sulfur analysis and advanced sulfide analysis technology.