Astm D454621 Pdf →

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

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Method A – Standard Consolidation/Collapse (Single Point)

• Procedure: Saturate the specimen at the end of consolidation under a specific vertical pressure (usually the estimated overburden pressure).
• Best for: Preliminary assessments or projects where only a general collapse potential is needed.
• Output: One collapse potential value at a single pressure.

| Standard | Focus | Key Difference from D4546-21 | | :--- | :--- | :--- | | ASTM D4546-21 | Swell/Collapse (wetting under load) | Measures volume change during saturation. | | ASTM D2435 | Standard Consolidation | Measures compression without saturation. | | ASTM D5333 | Collapse Potential (another method) | Older, less common method. D4546 is preferred. | | ASTM D2166 | Unconfined Compression | Measures strength, not volume change. | astm d454621 pdf