ASTM E3391

ASTM E3391 is the standard terminology reference for gunshot residue analysis, helping users apply consistent language when discussing GSR evidence, methods, and results. As a technical document, it supports clear communication across laboratories, forensic workflows, and compliance-driven reporting. ASTM E3391 matters because consistent terminology reduces ambiguity, improves document quality, and helps ensure that gunshot residue analysis is described in a uniform, defensible way.

Overview of ASTM E3391

ASTM E3391, Standard Terminology Relating to Gunshot Residue Analysis (GSR), provides the specialized vocabulary used in this area of forensic testing. It is intended to support precise interpretation, reporting, and discussion of terms associated with GSR analysis. In practice, this kind of terminology standard helps align laboratory personnel, technical reviewers, and other stakeholders on the meaning of key terms, which can improve consistency in documentation and communication.

Common use cases of ASTM E3391

This standard is commonly used in forensic laboratories, technical reports, and training materials related to gunshot residue analysis. It may also support method documentation, evidence review, and communication between analysts and quality assurance staff. When laboratories reference ASTM E3391, they can help ensure that terminology used in procedures, findings, and case records remains consistent and easier to compare across teams, instruments, and reporting formats.

Benefits of using ASTM E3391

Using ASTM E3391 can improve terminology consistency, reduce misunderstandings, and support clearer forensic reporting. For organizations involved in gunshot residue analysis, a shared vocabulary helps strengthen quality control and internal review processes. It may also support procurement and compliance efforts by giving teams a recognized ASTM standard to reference when documenting practices, evaluating procedures, or preparing technical communication.

• Standard terminology for GSR analysis
• Supports consistent forensic reporting
• Helps reduce ambiguity in technical documents
• Useful for laboratory communication and review
• Aligned with ASTM terminology practices