Methane standard gas in air
Mineral processing 2025-04-25
| Product name | Standard substance for methane gas in air |
| Other names | Methane standard gas, methane standard gas, methane calibration gas |
| Calculation formula | Xi=ni/n |
| Xi: molar ratio of components (mol/mol) | |
| Ni: amount of component (mol) | |
| N: amount of all components in mixed gas (mol) | |
| Confidence factor | Confidence level 95% |
| Uncertainty | Subject to the standard certificate |
| Concentration range | Prepared according to customer requirements at the corresponding saturated vapor pressure |
| Preparation standard | GB5274-2018 “Gas Analysis-Preparation of Mixed Gas for Calibration-Weighing Method” |
| Filling pressure | Filling pressure is 9.5 MPa, and the lower limit of the use pressure is 0.5 MPa |
| Included information | Certificate of conformity + fixed value certificate |
| Packaging specifications | 8L/4L/2L/1L |
| Gas cylinder standard | Implementation standard “Technical Regulations for Safety of Gas Cylinders (TSG 23-2021)” |
