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1.1 This test method covers the measurement of stiffness properties of fabrics. Bending length is measured and flexural rigidity is calculated. Two procedures are provided.
1.1.1 Option A- Cantilever Test, employing the principle of cantilever bending of the fabric under its own mass.
1.1.2 Option B- Heart Loop Test, employing the principle of a loop formed in a fabric strip and hung vertically.
1.2 This test method applies to most fabrics including woven fabrics, air bag fabrics, blankets, napped fabrics, knitted fabrics, layered fabrics, pile fabrics. The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated.
1.3 The values stated in SI units are to be regarded as the standard.The U.S. Customary units may be approximate.
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
D3776 Test Methods for Mass Per Unit Area (Weight) of Fabric
D4850 Terminology Relating to Fabrics and Fabric Test Methods
UNSPSC Code 11160000(Fabrics and leather materials)
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ASTM D1388-96e1, Standard Test Method for Stiffness of Fabrics, ASTM International, West Conshohocken, PA, 1999, www.astm.orgBack to Top