DIN Standards Committee Gas Technology
Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures - Amendment 1: Software B LEAST - Performance check for non-linear model functions using alternative computer programs
Abstract
This document provides methods for: - determining the composition of a calibration gas mixture by comparison with appropriate reference gas mixtures, - calculating the uncertainty of the composition of a calibration gas mixture in relation to the known uncertainty of the composition of the reference gas mixtures with which it was compared, - checking the composition attributed to a calibration gas mixture by comparison with appropriate reference gas mixtures, - consistency testing and outlier search in suites of calibration gas mixtures of closely related composition. With the amendment, ISO 6143:2025 is updated with corrected uncertainty values, guidance on exponential-function parameterization, additional software references, and validation data, improving the reliability and practical application of the standard.
Begin
2026-03-17
WI
00238104
Planned document number
DIN EN ISO 6143/A1
Project number
03201144
Responsible national committee
NA 032-03-01-05 AK - Test gases, test pressures, appliance categories and gas appliance types
Responsible european committee
CEN/TC 238 - Test gases, test pressures, appliance categories and gas appliance types
