ASTM D6517

ASTM D6517 is the ASTM standard guide for field preservation of ground water samples, providing practical direction for handling samples after collection. It addresses an important step in groundwater sampling workflows: preserving sample integrity before laboratory analysis. By outlining a consistent field approach, the guide helps support more reliable data, reduce sample alteration, and improve confidence in environmental and water-quality decisions. For organizations working with groundwater monitoring, ASTM D6517 serves as a useful technical reference for consistent sample preservation practices.

What is ASTM D6517?

ASTM D6517 is a guide rather than a prescriptive test method, and its focus is the field preservation of ground water samples. In practical terms, it helps users maintain sample condition from the point of collection through transport and later analysis. This can include considerations tied to preservation handling, timing, and general sample protection in the field. As a technical document, it supports more consistent groundwater sampling practices and helps users align field procedures with recognized ASTM guidance.

Where is ASTM D6517 used?

This guide is commonly used in groundwater monitoring programs, environmental sampling projects, and other field workflows where water samples must be preserved before laboratory testing. It is relevant wherever groundwater is collected for analysis and careful handling is needed to reduce changes in sample quality. ASTM D6517 may be used by field technicians, environmental consultants, laboratories, and project teams responsible for sampling logistics, documentation, and sample chain-of-custody practices.

Why is ASTM D6517 important?

ASTM D6517 is important because sample preservation can strongly affect the quality and usefulness of groundwater data. Using a recognized guide helps improve consistency across projects, supports compliance-oriented procedures, and reduces the risk of compromised results due to poor field handling. It also aids procurement and quality control efforts by giving teams a common reference for preservation practices. For organizations that depend on defensible environmental data, ASTM D6517 can help strengthen confidence in reported findings.

• Field preservation guidance for groundwater samples
• Supports consistent sample handling practices
• Helps protect sample integrity before analysis
• Useful for environmental monitoring workflows
• Reference for technical and quality control procedures