ASTM D482-01

D874-23

Standard Test Method for Sulfated Ash from Lubricating Oils and Additives

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

D4177-22e1

Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).

D4928-24

Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration

D6792-25

Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

D6299-26a

Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance (Includes all amendments and changes 8/4/2026).