ASTM-E2228 › Standard Guide for Microscopical Examination of Textile Fibers
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Scope
1.1 This section describes guidelines for microscopical examinations employed in forensic fiber characterization, identification, and comparison. Several types of light microscopes are used including stereobinocular, polarized light, comparison, fluorescence and interference. In certain instances, the scanning electron microscope may yield additional information. Select which test(s) or techniques to use based upon the nature and extent of the fiber evidence.
Significance and Use
Microscopic examination is one of the least destructive means of determining rapid and accurate microscopic characteristics and generic polymer type of textile fibers. Additionally, a point-by-point, side-by-side microscopic comparison provides the most discriminating method of determining if two or more fibers are consistent with originating from the same source. This guideline requires specific pieces of instrumentation outlined herein.
Keywords
fibers; forensic science, microscopic examination; ICS Number Code 37.020 (Optical equipment)
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Document Number
ASTM-E2228-23A
Revision Level
2023A EDITION
Status
Current
Modification Type
New
Publication Date
May 10, 2023
Document Type
Guide
Page Count
11 pages
Committee Number
E30.01