ASTM D3385-18 establishes a field procedure using a double-ring infiltrometer to measure the liquid infiltration rate of soils. This constant-head method helps determine vertical soil permeability for environmental and engineering projects by recording water volume over time. For more details, visit ASTM. Standard ASTM D3385-18 - Afnor EDITIONS
Outer Ring: Usually 24 inches (600 mm) in diameter. It acts as a buffer to limit the lateral spread of water, ensuring that water from the inner ring moves in a one-dimensional, vertical flow for more accurate results. Test Procedure and Methodology astm d338518 pdf
Why use the 2018 version? Regulatory bodies (EPA, state DEQs, local health departments) and project specifications increasingly reference the latest ASTM standard. Using an obsolete PDF (e.g., D3385-03) may lead to non-compliance during audits or peer review. ASTM D3385-18 establishes a field procedure using a
The American Society for Testing and Materials (ASTM) is a globally recognized leader in the development and delivery of voluntary consensus standards. Among its vast repository of standards, ASTM D3385-18 stands out for its significance in the geosynthetics industry. Specifically, this standard pertains to the determination of pore size distribution of geotextiles, which are permeable fabrics used in civil engineering applications to stabilize and reinforce soil and other materials. Standard ASTM D3385-18 - Afnor EDITIONS Outer Ring:
The standard mandates two concentric rings, typically constructed of steel or hard plastic.