ASTM D6640

ASTM D6640 is the ASTM standard focused on the collection and handling of soils obtained in core barrel samplers for environmental investigations. It provides a technical framework for managing soil samples after recovery so they remain suitable for evaluation and reporting. By guiding how these materials are collected, handled, and preserved, the standard helps support more consistent environmental field work and reduces the chance of sample disturbance before analysis or assessment.

ASTM D6640 standard overview

The Standard Practice for Collection and Handling of Soils Obtained in Core Barrel Samplers for Environmental Investigations addresses the practical steps associated with soil samples recovered using core barrel samplers. Its purpose is to support orderly sample management from field collection through handling activities that may affect sample condition. ASTM D6640 is relevant to users who need a clear technical reference for maintaining sample integrity and promoting consistency in environmental investigation workflows.

Where is ASTM D6640 used?

This standard is commonly used in environmental field investigations where soil is obtained using core barrel samplers. It is most relevant during sampling programs, sample transfer, temporary storage, and preparation for further examination or testing. ASTM D6640 may be used by field teams, consultants, and laboratories that need a shared approach for handling recovered soil so the material remains representative of the sampled location and usable for downstream decision-making.

Practical importance of ASTM D6640

ASTM D6640 matters because sample collection and handling can influence the reliability of environmental results. Using a consistent practice helps support compliance efforts, improve documentation, and reduce the risk of sample loss, disturbance, or cross-contamination. For procurement, field planning, and quality control, the standard provides a useful reference point when evaluating sampling procedures and aligning expectations across project teams. It also helps reinforce confidence in the condition of soil samples before analysis.

• Soil recovered with core barrel samplers
• Environmental investigation workflows
• Sample handling and preservation practices
• Field consistency and documentation
• Support for downstream testing and evaluation