Astm D454621 Pdf |work|

Report: An Analysis of ASTM D4546-21 Subject: Standard Test Methods for Sulfur in Petroleum Products by High Performance Liquid Chromatography (HPLC) with Ultraviolet (UV) Detection

• Purchase the PDF from ASTM International or an authorized reseller.
• Verify the revision (2021) before writing any test request.
• Train your technicians on the difference between Method A, B, and C.

Conclusion

Method B – Standard Consolidation/Collapse (Multiple Point)

• Procedure: Run multiple tests on identical specimens at different vertical pressures to generate a collapse potential versus pressure curve.
• Best for: Detailed site investigations where collapse potential needs to be evaluated across a range of depths.
• Output: A relationship showing how collapse potential changes with applied stress.

The standard is divided into three specific procedures, each tailored to different soil types and engineering needs: astm d454621 pdf

Note: Many engineers mistakenly use D2435 for collapse testing. D4546-21 is the correct standard because it specifically addresses the reduction in volume due to wetting. Report: An Analysis of ASTM D4546-21 Subject: Standard