ASTM International’s Crude Oil Vacuum Distillation by ASTM D5236 Proficiency Testing Program is designed for the Vacuum Distillation of Atmospheric Tower Bottoms from Crude Oil and provides laboratories with a statistical quality assurance (SQA) tool, enabling them to compare, improve, and maintain, a high level of performance in the use of test methods with other laboratories worldwide. The Crude Oil Vacuum Distillation by ASTM D5236 program will provide one 5 gallon can of the same Atmospheric Tower Bottoms crude oil for each cycle. 

Conducted two times annually, this program provides a different commercial sample, electronic report forms, and test instructions for each test cycle. Your laboratory performs the test methods using the test methods cited in the program. All data and related information generated from the program is coded to maintain lab confidentiality.

Test instructions and data report forms are distributed electronically to each participant on the date samples are distributed. Labs have approximately 8 weeks to submit test data with the final statistical summary reports being electronically distributed in approximately 20 business days.