NBN ISO 14167:2020

Gas analysis — General quality aspects and metrological traceability of calibration gas mixtures (ISO 14167:2018)

ACTIVE

About this standard

Languages
English and French
Type
NBN
Standards committee
NBN/I158
Status
ACTIVE
Publication date
22 October 2020
ICS Code
71.040.40 (Chemical analysis)
Withdrawn Date

About this training

Summary

This document provides requirements and guidelines on the necessary quality assurance required to produce calibration gas mixtures that are demonstrably stable and comparable. It shows that this is achieved by demonstrating that the composition of the calibration gas mixture is metrologically traceable to the SI.
This document shows that calibration gas mixtures can be prepared according to methods that have measurements that are completely described in SI units. It describes procedures for verifying that the composition of such gas mixtures is correct within the stated measurement uncertainty. Guidance is given as to how to conduct the evaluation of uncertainty in these procedures.
This document also shows how a calibration gas mixture with unknown composition can be calibrated by reference to traceable standard gas mixtures.
This document covers the commonalities and differences of quality management schemes in use by producers of calibration gas mixtures, most notably those described in ISO/ IEC 17025 and ISO 17034. These systems lead to gas mixtures with different characteristics, and this document explains these differences and their implications.
Calibration gas mixtures, as prepared and certified for composition in accordance with this document, are used for the calibration of equipment, the performance evaluation of methods, measurement procedures and equipment.