NF EN ISO 16664

NF EN ISO 16664

December 2008
Standard Cancelled

Gas analysis - Handling of calibration gases and gas mixtures - Guidelines

ISO 16664:2004 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. ISO 16664:2004 only applies to gases or gas mixtures that are within the "utilization period", and it pays special attention tostorage of calibration gas cylinders;calibration gas withdrawal from cylinders;transfer of calibration gas from cylinders to the point of calibration.ISO 16664:2004 also outlines a method of assessing the stability for a gas mixture, and takes into account the gas composition uncertainty given on the certificate and the users measurement uncertainty.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2008

Number of pages

25 p.

Reference

NF EN ISO 16664

ICS Codes

71.040.40   Chemical analysis

Classification index

X20-103

Print number

1 - 14/11/2008

International kinship

European kinship

EN ISO 16664:2008
Sumary
Gas analysis - Handling of calibration gases and gas mixtures - Guidelines

ISO 16664:2004 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. ISO 16664:2004 only applies to gases or gas mixtures that are within the "utilization period", and it pays special attention to

  • storage of calibration gas cylinders;
  • calibration gas withdrawal from cylinders;
  • transfer of calibration gas from cylinders to the point of calibration.

ISO 16664:2004 also outlines a method of assessing the stability for a gas mixture, and takes into account the gas composition uncertainty given on the certificate and the users measurement uncertainty.

Standard replaced by (1)
NF EN ISO 16664
December 2017
Standard Current
Gas analysis - Handling of calibration gases and gas mixtures - Guidelines

ISO 16664:2017 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. This document only applies to gases or gas mixtures that are within the "utilization period". It provides the following guidelines for the handling and use of calibration gas mixtures: - storage of calibration gas cylinders; - calibration gas withdrawal from cylinders; - transfer of calibration gas from cylinders to the point of calibration. It also outlines a method of assessing the stability of a gas mixture, taking into account the gas composition uncertainty given on the certificate and the user's measurement uncertainty.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Termes et définitions
    1
  • 3 Transport et stockage
    4
  • 3.1 Remarques générales
    4
  • 3.2 Basse température
    4
  • 3.3 Température élevée
    4
  • 3.4 Eau
    4
  • 3.5 Stockage et manutention
    4
  • 4 Mode de soutirage
    5
  • 4.1 Généralités
    5
  • 4.2 Pression minimale d'utilisation
    5
  • 4.3 Température
    5
  • 4.4 Réduction de pression et débit
    5
  • 4.5 Remplacement, changement de position des bouteilles
    6
  • 5 Système de transfert
    6
  • 5.1 Mode opératoire relatif à la purge
    6
  • 5.2 Considérations relatives à la conception et à la construction des lignes de transfert de gaz
    7
  • 6 Stabilité
    13
  • Annexe A (informative) Vérification par l'utilisateur final de la stabilité des mélanges de gaz pour étalonnage
    14
  • Bibliographie
    17
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