Standard Calibration Gas
MESA Specialty Gases offers three types of product grade available for your calibration gas standard, Primary, Certified and Gravimetric Standards.
The Primary Standard is the most accurate and is made by weight. Unless stated otherwise, the specialty gas mixture is certified to ± 1% analytical accuracy of the numbers reported.
The Certified Standard is made by a combination of pressure and/or weight measurements. Unless stated otherwise, the calibration gas mixture is certified to ± 2% analytical accuracy of the numbers reported.
1. The Blend Tolerance is expressed as the relative percentage deviation from the requested concentration of the individual components. Blend Tolerances of multi-component mixtures might vary as a function of the requested individual component concentrations and complexity of the mixture. Certification Accuracy is shown as a percentage of the reported value.
- ±1% relative for concentrations ≤2.00%
- ±0.02% absolute for concentrations >2.00% for standards with ≤15 components
- ±1% relative for concentrations >2.00% for standards with >15 components
2. Tolerance of minor components below 5 ppm may vary depending on the component and complexity of the mixture.
3. Each component is reported at the requested concentration ± the % stated for the concentration range.
