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    ASTM E1588 - 16

    Standard Guide for Gunshot Residue Analysis by Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry

    Active Standard ASTM E1588 | Developed by Subcommittee: E30.01

    Book of Standards Volume: 14.02

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    Significance and Use

    5.1 This document will be of use to forensic laboratory personnel who are involved in the analysis of GSR samples by SEM/EDS (4).

    5.2 SEM/EDS analysis of GSR is a non-destructive method that provides (5, 6) both morphological information and the elemental profiles of individual particles.

    5.3 Particle analysis contrasts with bulk sample methods, such as atomic absorption spectrophotometry (AAS) (7), neutron activation analysis (NAA) (8), inductively coupled plasma atomic emission spectrometry (ICP-AES), and inductively coupled plasma mass spectrometry (ICP-MS), where the sampled material is dissolved or extracted prior to the determination of total element concentrations, thereby sacrificing morphological information and individual particle identification.

    5.4 X-ray fluorescence spectrometry (XRF) is a technique that has been used to map the placement and distribution of GSR particles surrounding bullet holes in order to establish shooting distances (9). Unlike the solution-based bulk methods of analysis, XRF is non-destructive; however, XRF still does not provide morphological information and is incapable of individual GSR particle identification.

    1. Scope

    1.1 This guide covers the analysis of gunshot residue (GSR) by scanning electron microscopy/energy-dispersive X-ray spectrometry (SEM/EDS) by manual and automated methods. The analysis may be performed manually, with the operator manipulating the microscope controls and the EDS system software, or in an automated fashion, where some amount of the analysis is controlled by pre-set software functions.

    1.2 Since software and hardware formats vary among commercial systems, guidelines will be offered in the most general terms possible. For proper terminology and operation, consult the SEM/EDS system manuals for each system.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

    ICS Code

    ICS Number Code 11.020 (Medical sciences and health care facilities in general)

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E1588-16

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E1588-16, Standard Guide for Gunshot Residue Analysis by Scanning Electron Microscopy/Energy Dispersive X-Ray Spectrometry, ASTM International, West Conshohocken, PA, 2016,

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