Astm D338518 Pdf [exclusive] -

Testers maintain a constant water level (head) throughout the duration of the test.

The testing area should be nearly level. If you want to test the infiltration rate of subsoils rather than the surface layer, you must carefully excavate a pit to the desired depth, ensuring minimal disturbance to the exposed soil. astm d338518 pdf

To comply with ASTM D3385-18, specific equipment dimensions and materials must be used. 1. The Rings Testers maintain a constant water level (head) throughout

This specific test is designed for soils with a hydraulic conductivity between astm d338518 pdf