Astm D454621 Pdf < Proven — 2026 >

: Similar to Method A but involves a single ring. This method focuses on determining the infiltration rate and water-absorption properties.

provides the laboratory testing procedures used to measure the magnitude of one-dimensional wetting-induced swell or collapse (hydrocompression) of unsaturated soils. astm d454621 pdf

The standard defines three distinct laboratory procedures, each suited for different engineering applications: : Similar to Method A but involves a single ring

The number "21" in your search refers to the year of approval—2021. ASTM International updates its standards on a rolling basis. The 2021 version supersedes all previous versions, including D4546-14 (2014) and D4546-08 (2008). Using the most current revision is essential for compliance with building codes and project specifications. astm d454621 pdf