This International Standard describes a simplified method for the calculation of density and vapour pressure of liquefied petroleum gases (LPG) based on compositional data and density and vapour pressure factors for individual LPG components. A list of factors is provided in this International Standard. This method is intended for application in specifications of product quality and is not intended for application to quantity measurement in custody transfer (see ISO 6578).
ISO 8973:1997 history
2020ISO 8973:1997/Amd 1:2020 Liquefied petroleum gases — Calculation method for density and vapour pressure — Amendment 1
1997ISO 8973:1997 Liquefied petroleum gases - Calculation for density and vapour pressure