This Double Ring Infiltrometer set is constructed of heavy duty and durable galvanized steel and braced with welded steel supports inside and out to insure the rings stay evenly centered as they penetrate the soil. These Infiltration rings are constructed of heavy duty 16 Gauge. They also contain ports to allow easy connection of Turf-Tec Mariotte Tubes. These rings provide an ASTM approved double ring infiltration test which provides a soil infiltration test in a simple yet efficient manner. Turf-Tec 12" and 24" infiltration rings are already centered in position for ease of positioning rings and ease of insertion into the soil.
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More D Infiltration rates have application to such studies as liquid waste disposal, evaluation of potential septic-tank disposal fields, leaching and drainage efficiencies, irrigation requirements, water spreading and recharge, and canal or reservoir leakage, among other applications.
They cannot be directly related unless the hydraulic boundary conditions are known, such as hydraulic gradient and the extent of lateral flow of water, or can be reliably estimated. Users of this standard are cautioned that compliance with Practice D does not in itself assure reliable results.
Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors. Scope 1. The infiltrometer also may be installed in a trench excavated in dry or stiff soils. However, this test method cannot be conducted where the test surface is below the groundwater table or perched water table. The inch-pound units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Download: ASTM D3385.pdf