GB/T 45133-2025 "Gas analysis — Determination of composition of gas mixtures — Comparison method based on single-point and two-point calibration" specifies the comparison method for determining the composition of gas mixtures using single-point and two-point calibration. It is applicable to gas analysis scenarios requiring a balance between cost and accuracy. Testing requires the use of instruments with corresponding detection capabilities, such as gas chromatographs and infrared gas analyzers, in conjunction with traceable standard gas mixtures. The standard defines data evaluation methods, applicable conditions, and approaches for assessing measurement uncertainty. It guides the scientific application of simplified calibration methods to ensure the reliability of measurement results.
| Status | Active | ||
|---|---|---|---|
| CCS | G86 | ICS | 71.100.20 |
| Release Date | 2025-01-24 00:00:00 | Implementation Date | 2025-08-01 00:00:00 |
