EN ISO 20765-5:2022

SLOVENSKI STANDARD
SIST EN ISO 20765-5:2022
01-september-2022
Zemeljski plin - Izračun termodinamičnih lastnosti - 5. del: Izračun viskoznosti,
Joule-Thomsonovega koeficienta in isentropnega eksponenta (ISO 20765-5:2022)
Natural gas - Calculation of thermodynamic properties - Part 5: Calculation of viscosity,
Joule-Thomson coefficient, and isentropic exponent (ISO 20765-5:2022)
Erdgas - Berechnung der thermodynamischen Eigenschaften - Teil 5: Berechnung der
Viskosität, Joule-Thomson-Koeffizient und Isentropenexponent (ISO 20765-5:2022)
Gaz naturel - Calcul des propriétés thermodynamiques - Partie 5: Calcul de la viscosité,
du coefficient de Joule-Thomson et de l'exposant isentropique (ISO 20765-5:2022)
Ta slovenski standard je istoveten z: EN ISO 20765-5:2022
ICS:
75.060 Zemeljski plin Natural gas
SIST EN ISO 20765-5:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20765-5:2022

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SIST EN ISO 20765-5:2022


EN ISO 20765-5
EUROPEAN STANDARD

NORME EUROPÉENNE

May 2022
EUROPÄISCHE NORM
ICS 75.060
English Version

Natural gas - Calculation of thermodynamic properties -
Part 5: Calculation of viscosity, Joule-Thomson coefficient,
and isentropic exponent (ISO 20765-5:2022)
Gaz naturel - Calcul des propriétés thermodynamiques Erdgas - Berechnung der thermodynamischen
- Partie 5: Calcul de la viscosité, du coefficient de Joule- Eigenschaften - Teil 5: Berechnung der Viskosität,
Thomson et de l'exposant isentropique (ISO 20765- Joule-Thomson-Koeffizient und Isentropenexponent
5:2022) (ISO 20765-5:2022)
This European Standard was approved by CEN on 3 April 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20765-5:2022 E
worldwide for CEN national Members.

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SIST EN ISO 20765-5:2022
EN ISO 20765-5:2022 (E)
Contents Page
European foreword . 3

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SIST EN ISO 20765-5:2022
EN ISO 20765-5:2022 (E)
European foreword
This document (EN ISO 20765-5:2022) has been prepared by Technical Committee ISO/TC 193
"Natural gas" in collaboration with Technical Committee CEN/TC 238 “Test gases, test pressures,
appliance categories and gas appliance types” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2022, and conflicting national standards
shall be withdrawn at the latest by November 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Ro
...