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ASTM

ASTM D2208-00

(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

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
09-Sep-2000
ICS
59.140.30 - Leather and furs
Technical Committee
D31 - Leather
Drafting Committee
D31.05 - Upholstery
Current Stage
Ref Project

Relations

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

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ASTM D2208-00 - Standard Test Method for Breaking Strength of Leather by the Grab Method
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D 2208–00
Standard Test Method for
Breaking Strength of Leather by the Grab Method
This standard is issued under the fixed designation D 2208; 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 (e) 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 4. Summary of Test Method
1.1 This test method covers the determination of the break- 4.1 The leather specimen is clamped in the test machine as
ingstrengthofleatherbythegrabmethod.Itisintendedforuse describedinTestMethodD 2209.Theforcerequiredtorupture
on light, soft leathers; boarded, sueded, or embossed leathers the leather at a jaw separation of 10 6 2 in./min is measured,
tested on a specimen in the form of a rectangle piece; narrow along with the percent elongation at rupture.
strap, welt, lace, and round belt leathers; or other leathers that
5. Significance and Use
cannot be accurately tested by Test Method D 2209. This test
method does not apply to wet blue. 5.1 The measurement of the strength of leather is often
necessary in order to determine its suitability for its intended
1.2 The test method is not recommended for breaking loads
over 500 lbf (2200 N) because of slippage of the specimen in application. This test method is recommended for use on light,
soft leathers, narrow strap, welt, lace and round belt leathers as
the jaws.
1.3 The values stated in inch-pound units are to be regarded well as others that cannot be accurately tested by Test Method
D 2209.
as the standard. The values given in parentheses are for
information only.
6. Apparatus
1.4 This standard does not purport to address all of the
6.1 Testing Machine, as described in Test Method D 2209.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
NOTE 1—The face of one jaw of each clamp shall measure 1 by 1 in.
priate safety and health practices and determine the applica- 1
(25.4 by 25.4 mm) and that of the other shall measure 1 by 1 ⁄2 (25.4 by
bility of regulatory limitations prior to use.
38 mm) or more for testing specimens wider than the jaws only.
6.2 Thickness Gage—A dead-mass type of thickness gage
2. Referenced Documents
as described in Test Method D 1813.
2.1 ASTM Standards:
6.3 Steel Scale, graduated to read in 0.02 in. (0.5 mm).
D 1517 Terminology Relating to Leather
D 1610 Practice for Conditioning Leather and Leather
7. Test Specimen
Products for Testing
7.1 For testing specimens wider than the jaws, the specimen
D 1813 Test Method for Measuring Thickness of Leather
forwide,flatleathersshallbeasmallpieceofleather6in.(152
Test Specimens
mm) long and 3 in. (76 mm) wide. The direction of the long
D 2209 Test Method for Tensile Strength of Leather
dimension relative to the backbone shall be noted.
D 2211 Test Method for Elongation of Leather
7.2 For testing specimens cut from narrow strip, the speci-
men for narrow strap, welting, lace, and round belt leathers
3. Terminology
shall be a piece of leather 6 in. (152 mm) long.
3.1 For definitions of leather terms used in this standard,
refer to Terminology D 1517.
8. Conditioning
8.1 All samples shall be conditioned for 48 h in standard
1 atmospheric conditioning and tested under these conditions as
This test method is under the jurisdiction ofASTM Committee D31 on Leather
described in Practice D 1610.
and is the direct responsibility of D31.04 on Apparel and Upholstery. This test
method was developed in cooperation with the American Leather Chemists Assn.
(Standards Method E 16–1965).
9. Procedure
Current editions approved Sept. 10, 2000. Published October 2000. Originally
9.1 For Testing Specimens Wider than the Jaws:
published as D 2208–63T. Last previous edition D 2208–95.
Annual Book of ASTM Standards, Vol 15.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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.
D 2208–00
9.1.1 Measure the thickness of the specimen to the nearest 10.1.1 Thickness to the nearest 0.001 in. (0.025 mm),
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 mm) each side of the center. thickness of the sample, and
10.1.2 Breaking strength to the nearest 1 lbf (or 1 N),
9.1.2 The distance between the grips at the start of the test
reported f
...

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