| Product name | Methane in nitrogen gas standard material |
| Other names | Methane in nitrogen standard gas, methane in nitrogen standard material, methane in nitrogen, methane residual nitrogen, methane in nitrogen standard gas, methane in nitrogen standard gas, methane in nitrogen calibration gas, methane in nitrogen calibration gas, methane mixed gas, methane standard gas |
| Calculation formula | Xi=ni/n |
| Xi: molar ratio of components (mol/mol) | |
| Ni: amount of component (mol) | |
| N: amount of all components in the 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 | GBT5274.12018 “Preparation of mixed gas for gas analysis calibration Part 1 Preparation of primary mixed gas by weighing method” |
| Filling pressure | Filling pressure is 9.5 MPa, and the lower limit of use pressure is 0.5 MPa |
| Included information | Certificate of conformity + fixed value certificate |
| Packing specifications | 8L/4L/2L/1L |
| Gas cylinder standard | Implementation standard “Technical Regulations for Gas Cylinder Safety (TSG23-2021)” |
Standard Group - High Purity Gases and Specialty Gases Supplier
