Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester

ASTM D93-26 provides standard test methods for determining flash point using manual or automated Pensky-Martens closed-cup apparatus.

The standard covers petroleum products from 40 °C to 370 °C and biodiesel from 60 °C to 190 °C. It includes procedures for distillate fuels, lubricating oils, residual fuel oils, petroleum liquids with solids or surface films, and biodiesel (B100), along with apparatus requirements, sampling guidance, verification, calculations, reporting, and precision statements.

Application Scope: Suitable for petroleum product quality control, fuel testing, lubricants, biodiesel evaluation, flammability classification, shipping compliance, and laboratory safety assessments.