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Teledyne API – Model T700 Dynamic Dilution Calibrator Getting Started
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NIST TRACEABLE CALIBRATION GAS STANDARDS
All calibration gases should be verified against standards of the National Institute for
Standards and Technology (NIST). To ensure NIST traceability, we recommend
acquiring cylinders of working gas that are certified to be traceable to NIST Standard
Reference Materials (SRM). These are available from a variety of commercial sources.
The following tables lists some of the most common NIST Primary gas standards
Table 3-6: NIST Standards for CO
2
SRM Description
Nominal Amount of
Substance
1676 Carbon Dioxide in Air 365 ppm
1674b Carbon Dioxide in Nitrogen 7 %
1675b Carbon Dioxide in Nitrogen 14 %
2619a Carbon Dioxide in Nitrogen 0.5 %
2620a Carbon Dioxide in Nitrogen 1.0 %
2621a Carbon Dioxide in Nitrogen 1.5 %
2622a Carbon Dioxide in Nitrogen 2.0 %
2623a Carbon Dioxide in Nitrogen 2.5 %
2624a Carbon Dioxide in Nitrogen 3.0 %
2625a Carbon Dioxide in Nitrogen 3.5 %
2626a Carbon Dioxide in Nitrogen 4.0 %
2745 Carbon Dioxide in Nitrogen 16 %
06873B DCN6388