Refrigerated hydrocarbon liquids. Static measurement. Calculation procedure

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

10-20-2017

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Outline of calculation
5 Mass
6 Energy content (calorific content)
7 Inter-conversion of liquid mass and vapour volume
  at standard conditions
8 Calculation of liquid density from composition
9 Calculation of calorific value from composition
Annex A (informative) - Characteristics of static
        measurement of refrigerated hydrocarbon
        liquids
Annex B (normative) - Molar volume of individual
        component
Annex C (normative) - Correction factors for
        volume reduction of LNG mixtures
Annex D (normative) - Gross calorific values for
        individual components
Annex E (normative) - Molar mass, compression
        factor and summation factor of individual
        component
Annex F (informative) - Boiling point of individual
        component
Annex G (informative) - Alternative procedure to
        calculate liquid density from composition
Bibliography

Describes the calculation procedure to convert the volume of liquefied petroleum gas (LPG) and liquefied natural gas (LNG) under the conditions at the time of measurement to the equivalent volume of liquid or vapour at the standard condition, i.e. 15 degrees C and 101,325 kPaA, or to the equivalent mass or energy (calorific content).

This document specifies the calculation procedure to convert the volume of liquefied petroleum gas (LPG) and liquefied natural gas (LNG) under the conditions at the time of measurement to the equivalent volume of liquid or vapour at the standard condition, i.e. 15°C and 101,325 kPaA, or to the equivalent mass or energy (calorific content). It applies to the quantities of refrigerated hydrocarbon liquids stored in or transferred to/from tanks and measured under static storage conditions. Calculation of pressurized gases is out of the scope of this document.

Committee	PTI/12
DevelopmentNote	Supersedes 17/30327536 DC & BS 7577(1992). (10/2017)
DocumentType	Standard
Pages	36
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 7577:1992 17/30327536 DC : 0

Standards	Relationship
ISO 6578:2017	Identical

ISO 3993:1984	Liquefied petroleum gas and light hydrocarbons — Determination of density or relative density — Pressure hydrometer method
ISO 91:2017	Petroleum and related products — Temperature and pressure volume correction factors (petroleum measurement tables) and standard reference conditions
ISO 6976:2016	Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
GPA 2145 : 2016	TABLE OF PHYSICAL PROPERTIES FOR HYDROCARBONS AND OTHER COMPOUNDS OF INTEREST TO NATURAL GAS AND NATURAL GAS LIQUIDS INDUSTRIES
ISO 8973:1997	Liquefied petroleum gases — Calculation method for density and vapour pressure
ISO 10976:2015	Refrigerated light hydrocarbon fluids — Measurement of cargoes on board LNG carriers

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BS ISO 6578:2017

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

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