| Product name | Standard substance of hydrogen sulfide gas in nitrogen |
| Other names | Hydrogen sulfide standard gas, residual nitrogen in hydrogen sulfide, standard gas of hydrogen sulfide, calibration gas of hydrogen sulfide |
| Calculation formula | Xi=ni/n |
| Xi: molar ratio of components (mol/mol) | |
| Ni: amount of substance of components (mol) | |
| N: amount of substance of all components in mixed gas (mol) | |
| Confidence factor | Confidence 95% |
| Uncertainty | Subject to the certificate of standard substance |
| 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 use pressure is 0.5 MPa |
| Information accompanying goods | Certificate of conformity + fixed value certificate |
| Packing specification | 8L/4L/2L/1L |
| Standard of gas cylinder | Implementation standard “Technical Regulations for Safety of Gas Cylinders (TSG 23-2021)” |
Standard Group - High Purity Gases and Specialty Gases Supplier
