ISO 91:2017
Petroleum and related products — Temperature and pressure volume correction factors (petroleum measurement tables) and standard reference conditions
ISO 91:2017 refers to temperature volume correction factors, which allow users to convert volumes, measured at ambient conditions, to those at reference conditions for transactional purposes. This document also refers to compressibility factors required to correct hydrocarbon volumes measured under pressure to the corresponding volumes at the equilibrium pressure for the measured temperature.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sources and usage guidelines for volume correction factors
4.1 Source of volume correction factors
4.2 Usage guidelines
Annex A (informative) Changes to previous standards
Annex B (normative) Standard reference conditions
Annex C (informative) Titles of petroleum measurement tables given in the API-ASTM-IP-GPA standards for volume correction factors
Annex D (informative) Other volume corrections factors standards
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sources and usage guidelines for volume correction factors
4.1 Source of volume correction factors
4.2 Usage guidelines
Annex A (informative) Changes to previous standards
Annex B (normative) Standard reference conditions
Annex C (informative) Titles of petroleum measurement tables given in the API-ASTM-IP-GPA standards for volume correction factors
Annex D (informative) Other volume corrections factors standards
Bibliography