ASTM E3404-25

1.1 This guide is an introduction to the examination of textile fibers in forensic casework. It is intended to assist individuals who conduct fiber analyses in their evaluation, selection, and application of tests that can be of value to their examinations. The goal is to provide a consistent approach to fiber analysis. Detailed descriptions of procedures for many of the techniques are addressed in separate documents (Guides E2224, E2225, E2227, and E2228). This standard is not intended as a detailed process description or rigid scheme for the analysis and comparison of fibers, but as a guide to the strengths and limitations of each analytical technique.

1.2 This standard is intended for use by competent forensic science practitioners with the requisite formal education, discipline-specific training (see Practice E2917), and demonstrated proficiency to perform forensic casework.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.