ASTM D4696
Standard Guide for Pore-Liquid Sampling from the Vadose Zone
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- Language: English
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About This Item
ASTM D4696 is the standard guide for pore-liquid sampling from the vadose zone, providing a technical reference for collecting liquid from unsaturated subsurface materials. It helps define a practical approach for obtaining samples used in environmental evaluation, site investigation, and related field work. By focusing on sampling in the vadose zone, this ASTM standard supports more consistent data collection and more reliable interpretation of subsurface liquid conditions.
Overview of ASTM D4696
ASTM D4696 addresses the guidance needed to sample pore liquid from the vadose zone, the unsaturated zone above the groundwater table. As a guide, it is intended to support planning and field practice rather than set a rigid test method. The document is useful for teams that need a common technical basis for sampling decisions, sample handling, and documentation. ASTM D4696 helps align field activities with a recognized ASTM standard for more dependable environmental data.
Common use cases of ASTM D4696
This standard is commonly used when environmental professionals need to obtain pore-liquid samples from unsaturated soils or other vadose-zone materials. It may support site characterization, monitoring programs, and investigations where liquid chemistry in the subsurface is relevant. ASTM D4696 is also helpful when selecting or evaluating sampling approaches and equipment for field conditions that require careful collection and handling of pore liquid.
Benefits of using ASTM D4696
Using ASTM D4696 can improve consistency in pore-liquid sampling practices and help reduce uncertainty in environmental data. It provides a recognized guide that supports procurement, field planning, and quality control by giving users a shared reference for vadose-zone sampling work. For organizations involved in compliance or technical review, ASTM D4696 can also help strengthen documentation and support more reliable comparisons across projects.
- Guidance for vadose-zone pore-liquid sampling
- Supports field planning and sample handling
- Helps improve consistency in environmental data
- Useful for site investigation and monitoring work
- Publication Date: 2020-08-12
- Publisher: ASTM
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