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ASTM D2208-00(2005)

(Test Method)

Standard Test Method for Breaking Strength of Leather by the Grab Method

Standard Test Method for Breaking Strength of Leather by the Grab Method

SIGNIFICANCE AND USE
5.1 The measurement of the strength of leather is often necessary in order to determine its suitability for its intended application. This test method is recommended for use on light, soft leathers, narrow strap, welt, lace and round belt leathers as well as others that cannot be accurately tested by Test Method D 2209.
SCOPE
1.1 This test method covers the determination of the breaking strength of leather by the grab method. It is intended for use on light, soft leathers; boarded, sueded, or embossed leathers tested on a specimen in the form of a rectangle piece; narrow strap, welt, lace, and round belt leathers; or other leathers that cannot be accurately tested by Test Method D2209. This test method does not apply to wet blue.
1.2 The test method is not recommended for breaking loads over 500 lbf (2200 N) because of slippage of the specimen in the jaws.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are 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.

General Information

Status
Historical
Publication Date
31-Aug-2005
ICS
59.140.30 - Leather and furs
Technical Committee
D31 - Leather
Drafting Committee
D31.05 - Upholstery
Current Stage
Ref Project

Relations

Replaces
ASTM D2208-00 - Standard Test Method for Breaking Strength of Leather by the Grab Method
Effective Date
01-Sep-2005
Replaced By
ASTM D2208-00(2010) - Standard Test Method for Breaking Strength of Leather by the Grab Method
Effective Date
01-Apr-2010

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ASTM D2208-00(2005) - Standard Test Method for Breaking Strength of Leather by the Grab MethodASTM D2208-00(2005) - Standard Test Method for Breaking Strength of Leather by the Grab Method
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ASTM D2208-00(2005) - Standard Test Method for Breaking Strength of Leather by the Grab Method
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Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation:D2208–00(Reapproved2005)
Standard Test Method for
Breaking Strength of Leather by the Grab Method
This standard is issued under the fixed designation D2208; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3. Terminology
1.1 This test method covers the determination of the break- 3.1 For definitions of leather terms used in this standard,
ingstrengthofleatherbythegrabmethod.Itisintendedforuse refer to Terminology D1517.
on light, soft leathers; boarded, sueded, or embossed leathers
4. Summary of Test Method
tested on a specimen in the form of a rectangle piece; narrow
strap, welt, lace, and round belt leathers; or other leathers that 4.1 The leather specimen is clamped in the test machine as
described in Test Method D2209. The force required to rupture
cannot be accurately tested by Test Method D2209. This test
method does not apply to wet blue. the leather at a jaw separation of 10 6 2 in./min is measured,
along with the percent elongation at rupture.
1.2 The test method is not recommended for breaking loads
over 500 lbf (2200 N) because of slippage of the specimen in
5. Significance and Use
the jaws.
5.1 The measurement of the strength of leather is often
1.3 The values stated in inch-pound units are to be regarded
necessary in order to determine its suitability for its intended
as the standard. The values given in parentheses are for
application. This test method is recommended for use on light,
information only.
soft leathers, narrow strap, welt, lace and round belt leathers as
1.4 This standard does not purport to address all of the
well as others that cannot be accurately tested by Test Method
safety concerns, if any, associated with its use. It is the
D2209.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Testing Machine, as described in Test Method D2209.
2. Referenced Documents
NOTE 1—The face of one jaw of each clamp shall measure 1 by 1 in.
2.1 ASTM Standards:
(25.4 by 25.4 mm) and that of the other shall measure 1 by 1 ⁄2 (25.4 by
D1517 Terminology Relating to Leather
38 mm) or more for testing specimens wider than the jaws only.
D1610 Practice for Conditioning Leather and Leather Prod-
6.2 Thickness Gage—A dead-mass type of thickness gage
ucts for Testing
as described in Test Method D1813.
D1813 Test Method for Measuring Thickness of Leather
6.3 Steel Scale, graduated to read in 0.02 in. (0.5 mm).
Test Specimens
D2209 Test Method for Tensile Strength of Leather
7. Test Specimen
D2211 Test Method for Elongation of Leather
7.1 For testing specimens wider than the jaws, the specimen
forwide,flatleathersshallbeasmallpieceofleather6in.(152
mm) long and 3 in. (76 mm) wide. The direction of the long
dimension relative to the backbone shall be noted.
This test method is under the jurisdiction ofASTM Committee D31 on Leather
and is the direct responsibility of D31.05 on Upholstery. This test method was
7.2 For testing specimens cut from narrow strip, the speci-
developed in cooperation with the American Leather Chemists Assn. (Standards
men for narrow strap, welting, lace, and round belt leathers
Method E16–1965).
shall be a piece of leather 6 in. (152 mm) long.
Current edition approved Sept. 1, 2005. Published September 2005. Originally
approved in 1963 as as D2208–63T. Last previous edition approved in 2000 as
8. Conditioning
D2208–00. DOI: 10.1520/D2208-00R05.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.1 All samples shall be conditioned for 48 h in standard
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
atmospheric conditioning and tested under these conditions as
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. described in Practice D1610.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D2208–00 (2005)
9. Procedure 10.1.1 Thickness to the nearest 0.001 in. (0.025 mm),
reported for each specimen or averaged and reported as the
9.1 For Testing Specimens Wider than the Jaws:
thickness of the sample, and
9.1.1 Measure the thickness of the specimen to the nearest
10.1.2 Breaking strength to the nearest 1 lbf (or 1 N),
0.001 in. (0.025 mm) in three places: at the center and on the
reported for each specimen or averaged and reported as the
long axis 1 in. (25.4
...

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