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UNI EN ISO 15970 : 2014

Current

Current

The latest, up-to-date edition.

NATURAL GAS - MEASUREMENT OF PROPERTIES - VOLUMETRIC PROPERTIES: DENSITY, PRESSURE, TEMPERATURE AND COMPRESSION FACTOR

Published date

24-04-2014

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Density at reference conditions
6 Density at operating conditions
7 Pressure
8 Temperature
9 Compression factor
Annex A (informative) - Guidance for instrument
        selection, instrument test and operational
        procedures
Annex B (informative) - Instrument documentation
Bibliography

Provides requirements and procedures for the measurement of the properties of natural gas that are used mainly for volume calculation and volume conversion: density at reference and at operating conditions, pressure, temperature and compression factor.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current

Standards Relationship
EN ISO 15970:2014 Identical
ISO 15970:2008 Identical

IEC 60079-1:2014 RLV Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
ISO 10715:1997 Natural gas — Sampling guidelines
IEC 60381-1:1982 Analogue signals for process control systems. Part 1: Direct current signals
ISO 6976:2016 Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
ISO 12213-3:2006 Natural gas Calculation of compression factor Part 3: Calculation using physical properties
IEC 60770-2:2010 Transmitters for use in industrial-process control systems - Part 2: Methods for inspection and routine testing
IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
ISO 14532:2014 Natural gas — Vocabulary
ISO/TR 9464:2008 Guidelines for the use of ISO 5167:2003
ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 60751:2008 Industrial platinum resistance thermometers and platinum temperature sensors
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
ISO 12213-1:2006 Natural gas Calculation of compression factor Part 1: Introduction and guidelines
IEC 60381-2:1978 Analogue signals for process control systems. Part 2: Direct voltage signals
ISO 2186:2007 Fluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elements
ISO 12213-2:2006 Natural gas Calculation of compression factor Part 2: Calculation using molar-composition analysis
ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
IEC 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
EN 1776:2015 Gas infrastructure - Gas measuring systems - Functional requirements
IEC 60770-1:2010 Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation

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