ASTM-D6828 Standard Test Method for Stiffness of Fabric by Blade/Slot Procedure

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Standard Test Method for Stiffness of Fabric by Blade/Slot Procedure



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1.1 This test method covers the determination of the stiffness of fabrics by measuring the force required to push a specimen into a slot of predetermined width with a metal blade working at a predetermined capacity.

Note 1—For other methods for testing stiffness, refer to Test Methods D 1388, D 4032, and D 5732.

1.2 This test method is applicable to fabrics of any fiber content whose stiffness does not exceed the capacity of the Penetrator Beam apparatus. Specimens can be taken from fabrics, rolls, or end products.

1.3 The values stated in SI units are to be considered as standard; the values inch-pound units are included for information only.

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.


bending; fabric; penetrator blade; stiffness; ICS Number Code 59.080.30 (Textile fabrics)

To find similar documents by ASTM Volume:

07.02 (Textiles (II): D4393 - latest)

To find similar documents by classification:

59.080.30 (Textile fabrics Including nonwovens, felts, lace, etc.)

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Document Number


Revision Level

2002 R19 EDITION



Modification Type


Publication Date

July 1, 2019

Document Type

Test Method

Page Count

5 pages

Committee Number