ASTM-D7879 › Standard Test Method for Determining Flax Fiber Widths Using Image Analysis
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Scope
1.1 This test method involves the measurement and analysis of two-dimensional projections of flax fibers using image analysis software in the longitudinal plane to determine the average and distribution of fiber widths.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
1.4 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.
Significance and Use
5.1 Longitudinal preparation is much quicker and less damaging than cross-sectional analysis and allows the fibers to be evaluated in their natural state.
5.2 This test method provides measurement of a flax fiber specimen that uses less specimen preparation, produces consistent results, and minimal specimen modification. It has been shown that the median values of width correlate very well with the Optical Fiber Diameter Analyzer (OFDA), an apparatus developed for measuring the value and distribution of wool fiber diameters.
Keywords
fiber diameter distribution; fiber width measurement; flax fiber; image analysis; slide scanner;; ICS Number Code 59.060.10 (Natural fibres)
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Document Number
ASTM-D7879-13(2018)
Revision Level
2013 R18 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
July 1, 2018
Document Type
Test Method
Page Count
3 pages
Committee Number
D13.17