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INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 18335
ISO/TC 28
Petroleum products and related
Secretariat: NEN
products — Determination of
Voting begins on:
2023-11-08 kinematic viscosity by calculation
from the measured dynamic viscosity
Voting terminates on:
2024-01-03
and density – Method by constant
pressure viscometer
Produits pétroliers et produits connexes — Détermination de la
viscosité cinématique par calcul à partir des mesures de viscosité
dynamique et de masse volumique — Méthode par viscosimètre à
pression constante
ISO/CEN PARALLEL PROCESSING
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 18335:2023(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 18335:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 18335
ISO/TC 28
Petroleum products and related
Secretariat: NEN
products — Determination of
Voting begins on:
kinematic viscosity by calculation
from the measured dynamic viscosity
Voting terminates on:
and density – Method by constant
pressure viscometer
Produits pétroliers et produits connexes — Détermination de la
viscosité cinématique par calcul à partir des mesures de viscosité
dynamique et de masse volumique — Méthode par viscosimètre à
pression constante
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ISO/CEN PARALLEL PROCESSING
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or ISO’s member body in the country of the requester.
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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 18335:2023(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 18335:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Reagents and materials . 2
6 Apparatus . 3
7 Test portion preparation .
...