ASTM D2622-94

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

D4294-24

Standard Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-ray Fluorescence Spectrometry

D4177-22e1

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

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

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).

D7343-26

Standard Practice for Optimization, Sample Handling, Calibration, and Validation of X-ray Fluorescence Spectrometry Methods for Elemental Analysis of Petroleum Products and Lubricants

D6259-23

Standard Practice for Determination of a Pooled Limit of Quantitation for a Test Method

D4927-26

Standard Test Methods for Elemental Analysis of Lubricant and Additive Components—Barium, Calcium, Phosphorus, Sulfur, and Zinc by Wavelength-Dispersive X-Ray Fluorescence Spectroscopy