Standard API MPMS Chapter 11.2.5 – A Simplified Vapor Pressure Correlation for Commercial NGLs – has been issued as a new, second edition in December 2020. QuantityWare has carefully analyzed this new edition, which replaces the first edition from 2007. The QuantityWare BCS 3.0 NGL/LPG implementations for the vapor pressure calculations do comply with this new edition. An online documentation compliance update for the PMC will be delivered with the next BCS 30x Collective Note.