ASTM-E2228 Standard Guide for Microscopical Examination of Textile Fibers

ASTM-E2228 - 2023A EDITION - CURRENT
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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)

To find similar documents by ASTM Volume:

14.02 (General Test Methods; Forensic Psychophysiology; Forensic Sciences; Terminology; Conformity Assessment; Statistical Methods; Nanotechnology; Forensic Engineering; Manufacture of Pharmaceutical Products)

To find similar documents by classification:

37.020 (Optical equipment Including microscopes, telescopes, binoculars, optical materials, optical components and optical systems Ophthalmic equipment, see 11.040.70 Optical measuring instruments, see 17.180.30 Photographic equipment lenses, see 37.040.10)

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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