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INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 7158
ISO/TC 34/SC 6
Meat and meat products —
Secretariat: SAC
Determination of nitrite and nitrate
Voting begins on:
2023-11-21 content — Ion chromatography
method
Voting terminates on:
2024-01-16
Viandes et produits carnés — Détermination des teneurs en nitrites et
nitrates — Méthode de chromatographie ionique
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 7158:2023(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
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ISO/FDIS 7158:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 7158
ISO/TC 34/SC 6
Meat and meat products —
Secretariat: SAC
Determination of nitrite and nitrate
Voting begins on:
content — Ion chromatography
method
Voting terminates on:
Viandes et produits carnés — Détermination des teneurs en nitrites et
nitrates — Méthode de chromatographie ionique
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© ISO 2023
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or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
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DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [email protected]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 7158:2023(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 7158:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling . 1
6 Preparation of test sample . 1
7 Test method of Ion chromatography .2
7.1 Reagents and Materials. 2
7.2 Apparatus . 3
7.3 Procedures . 3
7.3.
...