2023 Volume 54 Issue 5 Pages 283-291
The JIS B 9901 series consists of Part 1 : Gas removal media and Part 2 : Gas removal filters. The performance test of gas removal materials is tested at small scale and low flow rate in order to select filter materials. On the other hand, the performance test of the gas removal filter is tested at practical scale size and flow rate. Performance tests measure pressure drop, removal efficiency, removal capacity, and retentivity of gas removal media and gas removal filters. The equipment, test conditions, and operating methods for those measurements are described. In addition, the report shows how to estimate removal efficiency and removal capacity when used as a gas removal filter based on the test results of gas removal materials, and also lists gas concentration measurement methods for performance evaluation.
