"MT/T 280-1994 Method for the Determination of Harmful Gas Sulfur Dioxide in Mine Air (Detection Tube Method) " stipulates a method for the determination of sulfur dioxide concentration in mine air by using a ratio-length sulfur dioxide detection tube. This standard applies to the determination of sulfur dioxide concentration in mine air, expressed in ppm (V/V). The detection principle is to indicate the chemical substances in the powder by carrier adsorption. When the mine air containing sulfur dioxide passes through, the Color of the indicator powder will change, and the concentration of sulfur dioxide will be determined according to the length of the Color change.
| Status | Active |
|---|---|
| CCS | (Z11) 气体介质与放射性物质采样方法 | ICS |
| Release Date | 1992-05-01 00:00:00 | Implementation Date | 1994-10-01 00:00:00 |