Astm D338518 Pdf Best

The test should ideally use water of similar chemical composition to the actual liquid expected in the real-world application (e.g., local groundwater or municipal water). Using pure distilled water on sodium-rich soils can cause clay swelling and artificially reduce measured infiltration rates. Finding and Accessing the Official PDF Document

ASTM D3385-18 standard provides a field procedure for measuring the infiltration rate of liquids (typically water) into soils using a double-ring infiltrometer

. This method is primarily used for comparative studies in geotechnical and environmental engineering, such as evaluating potential septic-tank disposal fields, irrigation requirements, and canal or reservoir leakage. Overview of the Method

Key restrictions on ASTM PDF standards include: astm d338518 pdf

: Expressed as the volume of liquid per unit area per unit time (usually Key Specifications and Limitations

Used to drive the rings into the ground without warping the metal.

To quantify the flux of water moving vertically into the soil profile under steady-state conditions. The test should ideally use water of similar

Where to obtain the full standard

The designation "18" indicates that the standard was last reviewed, updated, or reapproved in the year 2018. This specific testing standard is governed by ASTM Committee D18 on Soil and Rock and falls directly under Subcommittee D18.04 on Hydrologic Properties of Soils & Rocks. Core Objectives of the Test

ASTM D3385-18 is the standard test method established by ASTM International for determining the infiltration rate of soils using a double-ring infiltrometer. The "18" denotes the year of its last major revision or reapproval. This method is primarily used for comparative studies

The standard outlines specific dimensions and steps to ensure test repeatability and accuracy. 1. Equipment Specifications Typically 30 cm (12 inches) in diameter. Outer Ring: Typically 60 cm (24 inches) in diameter.

The double-ring infiltrometer solves this problem by using two concentric cylinders:

Estimating seepage from canals, reservoirs, or retention ponds. 3. The Double-Ring Infiltrometer Apparatus