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Sign of elongation

a property of fibers referring to the elongation of a fiber in relation to refractive indices.
Discussion—If the fiber is elongated in the direction of the higher refractive index, it is said to have a positive sign of elongation; if the fiber is elongated in the direction of the lower refractive index, it is negative.

Committee
Trace Materials
Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
ANSI/ASTM E1732-24e1 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024. Source link
Reprinted, with permission, from ASTM E1732 Standard Terminology Relating to Forensic Science, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard is available from ASTM International, https://www.astm.org
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