ASTM International Standard Practice for Collection of Primer Gunshot Residue (pGSR) Particles from Clothing, Vehicles, and Other Inanimate Objects using Scanning Electron Microscopy (SEM) Stubs ASTM E3497-26

1.1 This practice covers procedures for collecting samples using SEM stubs from clothing, vehicles, and other inanimate objects that could have been exposed to primer gunshot residue (pGSR). This practice does not apply to the collection of pGSR from the hands or other body parts of a person. 1.2 This practice should be used by personnel who are responsible for collecting samples intended to be analyzed for the presence of pGSR. 1.3 Units-The values stated in SI units are to be regarded as the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.