GB/T 45133-2025 Active
GB/T 45133-2025 Gas analysis—The determination of the composition of gas mixtures—Comparison methods based on one-and two-point calibration
Abstract
This document specifies the specific requirements and acceptable conditions for different calibration methods when calibrating with a minimum number of calibration gas mixtures.
The methods described in this document are applicable to the following purposes:
—— Calibrating instruments with one or two calibration gas mixtures;
—— Determining the composition of gas samples;
—— Evaluating the uncertainty of the gas sample composition based on the uncertainty of the composition of the calibration gas mixtures used and the uncertainty components introduced by the measurement process.
In the methods described in this document, the composition is expressed in terms of molar fractions of substances. Other forms of quantity (such as mass fractions, volume fractions, or concentrations) are also applicable.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 45133-2025 |
| CCS | Industrial gases and chemical gases |
| ICS | Industrial gases |
| Implement Date | 2025-08-01 |