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INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 6142-2
ISO/TC 158
Gas analysis — Preparation of
Secretariat: SAC
calibration gas mixtures —
Voting begins on:
2023-07-21
Part 2:
Voting terminates on:
Gravimetric method for Class II
2023-09-15
mixtures
Analyse des gaz — Préparation des mélanges de gaz pour
étalonnage —
Partie 2: Méthode gravimétrique pour les mélanges de Classe II
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 6142-2:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
ISO/FDIS 6142-2:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 6142-2
ISO/TC 158
Gas analysis — Preparation of
Secretariat: SAC
calibration gas mixtures —
Voting begins on:
Part 2:
Voting terminates on:
Gravimetric method for Class II
mixtures
Analyse des gaz — Préparation des mélanges de gaz pour
étalonnage —
Partie 2: Méthode gravimétrique pour les mélanges de Classe II
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SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
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THEY ARE AWARE AND TO PROVIDE SUPPOR TING
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DOCUMENTATION.
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IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [email protected]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 6142-2:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
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ISO/FDIS 6142-2:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Individual cylinder production .3
6.1 General . 3
6.2 Estimation of generic uncertainty of the calibration gas mixtures . 4
7 Batch production .
...