Product Manual

Page 10
©Turf-Tec International - www.turf-tec.com
1471 Capital Circle NW #13, Tallahassee, FL. 32303 - USA
2. Referenced Documents
2.1 ASTM Standards:
D 3385-03 Standard Test Method for Infiltration Rate of Soils in Field Using Double-
Ring Infiltrometer
D 653 Terminology Relating to Soil, Rock, and Contained Fluids
D 1452 Practice for Soil Investigation and Sampling by Auger Borings
D 2216 Method for Laboratory Determination of Water (Moisture) Content of Soil,
Rock, and Soil-Aggregate Mixtures
D 2488 Practice for Description and Identification of Soils (Visual-Manual Procedure)
D 5093 Test Method for Field Measurement of Infiltration Rate Using a Double-Ring
Infiltrometer with a Sealed Inner Ring
3. Terminology
3.1 Definitions:
3.1.1 Incremental infiltration velocity— the quantity of flow per unit area over an
increment of time. It has the same units as the infiltration rate.
3.1.2 Infiltration—the downward entry of liquid into the soil.
3.1.3 Infiltration rate—a selected rate, based on measured incremental infiltration
velocities, at which liquid can enter the soil under specified conditions,
including the presence of an excess of liquid. It has the dimensions of velocity
(that is: cm
3
cm
-2
h
-1
= cm h
-1
).
3.1.4 Infiltrometer—a device for measuring the rate of entry of liquid into a porous
body, for example, water into soil.
3.1.5 For definitions of other terms used in this test method, refer to Terminology D
653.
4. Summary of Test Method
4.1 The Turf-Tec double-ring Infiltrometer method consists of driving the apparatus into
the ground, partially filling the rings with water or other liquid, and then maintaining
the liquid at a constant level. The volume of liquid added to the inner ring, to maintain
the liquid level constant, is the measure of the volume of liquid that infiltrates the soil.
The volume infiltrated during timed intervals is converted to an incremental infiltration
velocity, usually expressed in centimeter per hour or inch per hour, and plotted versus
elapsed time. The maximum-steady state, or average incremental infiltration velocity
depending on the purpose/application of the test, is equivalent to the infiltration rate.
5. Significance and Use