BS EN 13016-3:2018 PDF

What is BS EN 13016-3- Determination of vapour pressure and calculated DVPE (Triple Expansion Method) about?

BS EN 13016-3 specifies a method for the determination of the vapour pressure, exerted in vacuo , by volatile, low viscosity petroleum products, components, ethanol blends up to 85 % ( V/V ), and feedstocks using a variable volume chamber. A dry vapour pressure equivalent (DVPE) is calculated from the vapour pressure. The conditions used in the test described in  BS EN 13016-3  are a vapour - to - liquid ratio of 4:1 and a test temperature of 37,8 °C. The equipment is not wetted with water during the test, and the method described is, therefore, suitable for testing samples with or without oxygenates; no account is taken of dissolved water in the sample. This procedure calculates the partial pressure of the air dissolved in the test portion during the triple expansion process. It is suitable for samples with a DVPE between 13,7 kPa and 98,3 kPa.