ISO

ISO/TC 28/SC 2/WG 5 - Calculation of petroleum quantities

Calcul des quantités d'hydrocarbures

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Information technology

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ISO/TC 28/SC 2 - Measurement of petroleum and related products

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ISO

ISO 91:2017(Main)

Petroleum and related products -- Temperature and pressure volume correction factors (petroleum measurement tables) and standard reference conditions

SIST ISO 91:2018

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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