The test procedure outlined in the involves several distinct steps:
You can buy the ASTM D3385-18 standard directly from ASTM International through their official website ( www.astm.org ).
The data collected from the inner ring is used to calculate both the incremental infiltration rate and the cumulative infiltration. Incremental Infiltration Rate The infiltration velocity ( astm d338518 pdf
: Expressed as the volume of liquid per unit area per unit time (usually Key Specifications and Limitations
Water viscosity changes with temperature, which can alter infiltration speeds. Tests conducted in extreme cold or heat require mathematical correction factors. How to Access the Official PDF The test procedure outlined in the involves several
Driving heavy metal rings into brittle or sensitive soils can fracture the soil matrix or compact the sidewalls, yielding artificially high or low readings.
Simultaneously fill both the inner and outer rings with water to a predetermined depth (typically between 25 mm and 100 mm). It is vital to maintain an identical water level in both rings throughout the test duration to eliminate any head-induced hydraulic gradients between the two rings. Step 5: Data Recording Tests conducted in extreme cold or heat require
Refill the rings when the level drops significantly, keeping the levels between the inner and outer rings tightly matched. Step 5: Termination of the Test
The test is crucial because it helps distinguish between (how fast water moves through saturated soil) and infiltration rate (how fast water enters the soil surface). 2. Importance and Application
The ASTM D3385-18 pdf standard does not cover all safety issues related to its use; it is the user’s responsibility to follow proper safety protocols. Where to Obtain the ASTM D3385-18 PDF