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ASTM

ASTM D2207-00

(Test Method)

Standard Test Method for Bursting Strength of Leather by the Ball Method

Standard Test Method for Bursting Strength of Leather by the Ball Method

SCOPE
1.1 This test method covers the determination of the bursting strength of leather by the ball method. It may be used to test a large variety of leathers and leather products. It is particularly applicable to light- and medium-weight leathers, such as shoe uppers and garments. This test method does not apply to wet blue.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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
D31.07 - Physical Properties
Current Stage
Ref Project

Relations

Replaced By
ASTM D2207-00(2005) - Standard Test Method for Bursting Strength of Leather by the Ball Method
Effective Date
01-Apr-2005

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ASTM D2207-00 - Standard Test Method for Bursting Strength of Leather by the Ball MethodASTM D2207-00 - Standard Test Method for Bursting Strength of Leather by the Ball Method
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ASTM D2207-00 - Standard Test Method for Bursting Strength of Leather by the Ball 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2207 – 00
Standard Test Method for
Bursting Strength of Leather by the Ball Method
This standard is issued under the fixed designation D 2207; 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 5. Significance and Use
5.1 This test method is designed to measure the bursting
1.1 This test method covers the determination of the burst-
ingstrengthofleatherbytheballmethod.Itmaybeusedtotest strength of leather by measuring the force required to force a
alargevarietyofleathersandleatherproducts.Itisparticularly spherical ended plunger through a piece of leather. The
applicable to light- and medium-weight leathers, such as shoe bursting load and extension will be generally proportional to
uppers and garments. This test method does not apply to wet the diameter of the plunger. This test method is suitable for
blue. development, control and service evaluation of the leather.
1.2 The values stated in inch-pound units are to be regarded There is good correlation between bursting strength and tensile
as the standard. The values given in parentheses are for strength. This test method may not apply when the conditions
information only. of the test employed differ widely from those specified in the
1.3 This standard does not purport to address all of the test method.
safety concerns, if any, associated with its use. It is the
6. Apparatus
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 6.1 Testing Machine, as described in Test Method D 2209.
bility of regulatory limitations prior to use.
NOTE 1—The machine shall have a cross-head speed of 4 6 1 in./min
(1.6 6 0.4 mm/s).
2. Referenced Documents
6.2 Thickness Gage—A dead-mass type of thickness gage
2.1 ASTM Standards:
2 as described in Test Method D 1813.
D 1517 Terminology Relating to Leather
6.3 Burst Tester, as shown in Fig. 1. The diameter of the
D 1610 Practice for Conditioning Leather and Leather
2 ball or plunger shall be ⁄4 in. (0.250 in. (6.4 mm)).
Products for Testing
6.4 Parts Required to Modify Burst Tester, as illustrated in
D 1813 Test Method for Measuring Thickness of Leather
Fig. 2, or equivalent.
Test Specimens
6.5 Die, Knife, or Shears, for cutting the test specimen.
D 2209 Test Method for Tensile Strength of Leather
6.6 Dial Gage, mounted on the burst tester as shown in Fig.
1 to measure the height of the extension of the leather
3. Terminology
specimen.
3.1 For definitions of leather terms used in this standard
refer to Terminology D 1517.
NOTE 2—This gage shall be calibrated to read directly to the nearest
0.001 in. (0.025 mm). It shall be equipped with a flat anvil and presser
4. Summary of Test Method
foot.
4.1 The leather specimen is mounted in the ball burst fixture
6.7 Autographic Recorder to record the extension to the
which is attached to a testing machine, as described in Test
nearest 0.1 in. (2.5 mm).
MethodD 2209.Themachineisoperatedatajawseparationof
7. Test Specimen
4 6 1 in./min. The maximum load registered is recorded. The
bursting strength in lb/in. of thickness is calculated by dividing
7.1 The test specimen shall be a disk of leather at least 1.75
the bursting load by the thickness of the specimen.
in. (44.5 mm) in diameter.
7.2 A strip of leather between 1.75 and 6 in. (44.5 and 152
mm) wide may be used for a test specimen. Two tests shall be
This test method is under the jurisdiction ofASTM Committee D31 on Leather
run on each strip.
and is the direct responsibility of Subcommittee D31.07 on Physical Properties —
General. This test method was developed in cooperation with theAmerican Leather
Chemists Assn. (Standard Method E 14 – 1965).
Current edition approved Sept. 10, 2000. Published October 2000. Originally A modified Scott Model W Burst Tester has been found satisfactory for this
published as D 2207 – 64. Last previous edition D 2207 – 95. purpose.Available from Precision Scientific, 3737 W. Cortland, Chicago, IL60647.
Annual Book of ASTM Standards, Vol 15.04. Request Ball Burst Fixture Catalog, No. 26651.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 2207
10. Report
10.1 Report the following information:
10.1.1 Thickness to the nearest 0.001 in. (0.025 mm),
reported for each specimen or averaged and reported as the
thickness of the sample,
10.1.2 Bursting load to the nearest 1 lbf (4 N)
...

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