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Significance and Use
A measurement of a fabric's edgecomb resistance indicates the relative tendency of a fabric to pull apart under seam stress or similar action. The related concepts of yarn slippage and seam slippage are limited to sewn seams, whereas the measurement of edgecomb resistance is made at the edge of a cut part in the absence of a sewn seam. The absence of a sewn seam in this test method eliminates the effect that a particular stitch might have on the tendency of a yarn to slip near an edge of a cut part
This test method is useful for material design evaluations in such applications as airbags in which seam stress is a major concern.
This method may be used as a complement to Test Method D5822.
1.1 This test method covers the procedures for determining the resistance to edgecombing of a woven fabric used in inflatable restraints.
1.2 Procedures and apparatus other than those stated in this standard may be used by agreement of purchaser and supplier with the specific deviations from the standard practice acknowledged in the report.
1.3 The values stated in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D2904 Practice for Interlaboratory Testing of a Textile Test Method that Produces Normally Distributed Data
D2906 Practice for Statements on Precision and Bias for Textiles
D5035 Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
D5822 Test Method for Determining Seam Strength in Inflatable Restraint Cushions
D6799 Terminology Relating to Inflatable Restraints
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 43.040.60 (Bodies and body components); 59.080.30 (Textile fabrics)
UNSPSC Code 25172122(Passenger airbag inflator)
ASTM D6479-12, Standard Test Method for Determining the Edgecomb Resistance of Woven Fabrics Used in Inflatable Restraints, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top