ISO 20765-1:2005

Natural gas — Calculation of thermodynamic properties — Part 1: Gas phase properties for transmission and distribution applications

Publication date: 9 sht 2005

General information

Current stage: 90.20 Effective date: 15 pri 2026

Originator: ISO

Owner: ISO/TC 193/SC 1

Type: International Standard

ICS: 75.060

Gjuha: anglisht frëngjisht

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Statusi: Publikuar

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Scope

This part of ISO 20765 specifies a method of calculation for the volumetric and caloric properties of natural gases, natural gases containing synthetic admixture and similar mixtures, at conditions where the mixture can exist only as a gas.
The method is applicable to pipeline-quality gases within the ranges of pressure and temperature at which transmission and distribution operations normally take place. For volumetric properties (compression factor and density), the uncertainty of calculation is about ± 0,1 % (95 % confidence interval). For caloric properties (for example enthalpy, heat capacity, Joule-Thomson coefficient, speed of sound), the uncertainty of calculation is usually greater.

Life cycle

NOW

PUBLISHED
ISO 20765-1:2005
90.20 Standard under periodical review
15 pri 2026

National adoptions

SSH ISO 20765-1:2009

DPS

Gazi natyral - Llogaritja e vetive termodinamike - Pjesa 1:Vetitë e fazës së gastë për përdorime transmetimi dhe shpërndarje

60.60 Standard published

DPS/KT 19 më tepër

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