Key changes between versions primarily involve updates to the hydraulic conductivity thresholds. The 2003 and 2009 versions specified the lower limit for Test Method D5093 as approximately 1 × 10⁻⁶ cm/s. The current 2018 version updated this to 1 × 10⁻⁵ cm/s, reflecting improved understanding of measurement capabilities and better alignment with related standards.
When downloading the PDF, always check for the "Active" status, the publication date (March 1, 2018, for this edition), and the page count (8 pages for the main document) to confirm you are getting the authentic standard.
Before using this method, it's vital to know where it applies and where it doesn't.
The infiltration rate is calculated by dividing the volume of water added to the inner ring by the area of the ring and the time interval, expressed in units like cm/hr or in/hr. 5. Key Considerations and Limitations astm d338518 pdf
Understanding the revision history helps ensure you are using the correct version:
Designing retention basins, bioswales, and permeable pavements requires accurate soil infiltration profiles to prevent flooding and meet municipal drainage regulations.
Continue taking measurements until the infiltration rate stabilizes. A steady state is generally achieved when the infiltration rate remains relatively constant over three consecutive readings. This can take anywhere from 2 to 6+ hours depending on soil composition. Calculations and Data Analysis Key changes between versions primarily involve updates to
Identify a representative test location free of surface debris, large roots, and heavy vegetation.
The standard provides the field procedure for measuring the infiltration rate of soils using a double-ring infiltrometer . This method is primarily used for fine-grained soils to assess drainage for irrigation, waste disposal, or reservoir leakage. Core Test Principles
Acts as a hydraulic barrier. The water infiltrating from the outer ring saturates the surrounding soil, forcing the water in the inner ring to flow strictly downward in a vertical direction. When downloading the PDF, always check for the
The test uses two concentric open cylinders (rings) driven into the soil. The limits lateral water spread, ensuring that water from the inner ring moves vertically downward, which provides a more accurate measure of one-dimensional infiltration.
Polybutadiene rubber (BR) is a synthetic rubber used in various applications, including tire manufacturing, industrial products, and consumer goods. The ASTM D3385 standard provides a framework for evaluating the properties of BR to ensure its quality and performance.
is the definitive international standard for field-measuring the infiltration rate of liquids into soils using a double-ring infiltrometer . Managed under the jurisdiction of ASTM Committee D18 on Soil and Rock , this active standard spans 8 pages and details the required engineering equipment, test setups, and formulaic calculations necessary to evaluate site drainage capacity. Civil engineers, hydrogeologists, and environmental scientists use the official ASTM D3385-18 Document to inform storm-water management design, agricultural irrigation layouts, and landfill liner efficiency. 1. What is the Core Purpose of ASTM D3385-18?
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