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| Product name | Oxygen gas standard substance in nitrogen |
| Other names | Oxygen standard gas, oxygen residual nitrogen, oxygen standard gas, oxygen calibration gas, standard gas, nitrogen mixed 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 | GB5274-2018 “Gas Analysis-Preparation of Mixed Gases 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 |
| Packing specifications | 8L/4L/2L/1L |
| Gas cylinder standard | Implementation standard “Technical Regulations for Safety of Gas Cylinders (TSG 23-2021)” |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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