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Standard Active Last Updated: May 16, 2024 Track Document
ASTM E3284-23

Standard Practice for Training in the Forensic Examination of Primer Gunshot Residue (pGSR) Using Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry (SEM/EDS)

Standard Practice for Training in the Forensic Examination of Primer Gunshot Residue (pGSR) Using Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry (SEM/EDS) E3284-23 ASTM|E3284-23|en-US Standard Practice for Training in the Forensic Examination of Primer Gunshot Residue (pGSR) Using Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry (SEM/EDS) Standard new BOS Vol. 14.02 Committee E30
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Significance and Use

5.1 This practice is intended to be used by subject matter experts in the field of forensic pGSR analysis who have met their laboratory’s technical requirements to be assigned to the role of trainer in the category of testing that deals with the detection, analysis, and classification of pGSR particles.

5.2 This practice is intended to be used in conjunction with Practice E2917, as well as the laboratory’s existing generalized training protocols, standard operating procedures, and quality practices, to develop a complete training-to-competency program in pGSR analysis by SEM/EDS. This practice provides the required additional, discipline-specific elements for pGSR analysis by SEM/EDS, in accordance with 5.3.2 of Practice E2917; it does not include the core specific elements covered in 5.3.1 of Practice E2917.

5.3 The topics and procedures outlined in this practice are grounded in the body of scientific literature that exists in the field of pGSR examination.

5.3.1 Additional sources of information on pGSR examination, not specifically mentioned in this document, should be considered, added, or substituted. A review of new sources of information on general forensic methods and pGSR examinations should be carried out on a regular basis (e.g. annually or biannually) to incorporate well-established current findings and methods into the training program and to replace any outdated methods.

5.3.2 When possible, make additional training available to the trainee. Such training might include off-site short courses, short internships, and specialized training by experienced examiners.

Scope

1.1 This practice describes the minimum requirements of a training program in primer gunshot residue (pGSR) analysis by scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS). It describes lessons, practical exercises, and progress monitoring and evaluation that should be part of a laboratory’s training program.

1.2 The primary purpose of this practice is to facilitate the development and implementation of training programs in crime laboratories or other such analytical entities that participate in the detection, analysis, and classification of pGSR particles.

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.

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Details
Book of Standards Volume: 14.02
Developed by Subcommittee: E30.01
Pages: 7
DOI: 10.1520/E3284-23
ICS Code: 03.100.30; 07.140