ASTM D2346-00(2008)
(Test Method)Standard Test Method for Apparent Density of Leather
Standard Test Method for Apparent Density of Leather
SIGNIFICANCE AND USE
This test method is designed to determine the apparent density of specimens from their area and thickness. By measuring apparent density, the degree of loading or of compression of leather can be evaluated. The test method is unsuitable for very soft leathers such as chamois whose thickness cannot be accurately measured by the test method cited.
SCOPE
1.1 This test method covers the determination of the apparent density of specimens of leather. This test method does not apply to wet blue.
1.2 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.
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Designation: D2346 − 00 (Reapproved2008)
Standard Test Method for
Apparent Density of Leather
This standard is issued under the fixed designation D2346; 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 5. Apparatus
1.1 This test method covers the determination of the appar-
5.1 Round Die, 2.7 to 3.0 in. (68.6 to 76.2 mm) in diameter.
ent density of specimens of leather. This test method does not
5.2 Mallet or Clicking Machine.
apply to wet blue.
5.3 Rule or Steel Tape, graduated in ⁄32 in. or 0.02 in. or in
1.2 This standard does not purport to address all of the
millimetres.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.4 Balance and set of weights.
priate safety and health practices and determine the applica-
5.5 Thickness Gage as described in Test Method D1813.
bility of regulatory limitations prior to use.
6. Test Specimen
2. Referenced Documents
6.1 The test specimen shall be a disk of leather that has been
2.1 ASTM Standards:
conditioned as specified in 3.1.1. This specimen may be the
D1813 Test Method for Measuring Thickness of Leather
same as that used in Test Method D2347.
Test Specimens
D2347 Test Method for Measuring Area of Leather Test
7. Procedure
Specimens
7.1 Weigh the specimen to the nearest 0.001 g.
3. Terminology
7.2 Measure the thickness to the nearest 0.025-cm in four
3.1 Definitions:
quadrants of the specimen disk, equidistant from the rim and
3.1.1 apparent density—the weight of a unit volume of bulk
center (10 mil = 0.025 cm).
leather conditioned for 48 h in an atmosphere maintained at
73.4 6 1.8°F (23 6 1°C) and 50 6 4 % relative humidity.
7.3 Measure the area to the nearest second decimal place in
accordance with Test Method D2347.
4. Significance and Use
8. Calculation and Report
4.1 This test method is designed to determine the apparent
density of specimens from their area and thickness. By
8.1 Calculate the apparent density to the second decimal
measuring apparent density, the degree of loading or of
place by dividing the weight of the specimen in grams by the
compression of leather can be evaluated. The test method is
product of area in square centimetres and the average thickness
unsuitable for very soft leathers such as chamois whose
in centimetres.
thickness can
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D2346–00(Reapproved 2004) Designation: D 2346 – 00 (Reapproved 2008)
Standard Test Method for
Apparent Density of Leather
This standard is issued under the fixed designation D 2346; 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
1.1 This test method covers the determination of the apparent density of specimens of leather. This test method does not apply
to wet blue.
1.2 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
2.1 ASTM Standards:
D 1813 Test Method for Measuring Thickness of Leather Test Specimens
D 2347 Test Method for Measuring Area of Leather Test Specimens
3. Terminology
3.1 Definition:
3.1.1 apparent density—the weight of a unit volume of bulk leather conditioned for 48 h in an atmosphere maintained at 73.4
6 1.8°F (23 6 1°C) and 50 6 4 % relative humidity.
4. Significance and Use
4.1 This test method is designed to determine the apparent density of specimens from their area and thickness. By measuring
apparent density, the degree of loading or of compression of leather can be evaluated. The test method is unsuitable for very soft
leathers such as chamois whose thickness cannot be accurately measured by the test method cited.
5. Apparatus
5.1 Round Die, 2.7 to 3.0 in. (68.6 to 76.2 mm) in diameter.
5.2 Mallet or Clicking Machine .
5.3 Rule or Steel Tape, graduated in ⁄32 in. or 0.02 in. or in millimetres.
5.4 Balance and set of weights.
5.5 Thickness Gage as described in Test Method D 1813.
6. Test Specimen
6.1 The test specimen shall be a disk of leather that has been conditioned as specified in 3.1.1. This specimen may be the same
as that used in Test Method D 2347.
7. Procedure
7.1 Weigh the specimen to the nearest 0.001 g.
7.2 Measure the thickness to the nearest 0.025-cm in four quadrants of the specimen disk, equidistant from the rim and center
(10 mil = 0.025 cm).
7.3 Measure the area to the nearest second decimal plac
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:D2346–68 (Reapproved 1997) Designation: D 2346 – 00 (Reapproved
2008)
Standard Test Method for
Apparent Density of Leather
This standard is issued under the fixed designation D 2346; 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.
´ NOTE—A keyword was added and a cross-reference was updated editorially in 6.16.1 in April 1997.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1This test method covers the determination of the apparent density of specimens of leather.
1.1 This test method covers the determination of the apparent density of specimens of leather. This test method does not apply
to wet blue.
1.2 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
2.1 ASTM Standards:
D 1813 Test Method for Measuring Thickness of Leather Test Specimens
D 2347 Test Method for Measuring Area of Leather Test Specimens
3. Terminology
3.1 Definition:
3.1.1 apparent density—the weight of a unit volume of bulk leather conditioned for 48 h in an atmosphere maintained at 73.4
6 1.8°F (23 6 1°C) and 50 6 4 % relative humidity.
4. Significance and Use
4.1 This test method is designed to determine the apparent density of specimens from their area and thickness. By measuring
apparent density, the degree of loading or of compression of leather can be evaluated. The test method is unsuitable for very soft
leathers such as chamois whose thickness cannot be accurately measured by the test method cited.
5. Apparatus
5.1 Round Die, 2.7 to 3.0 in. (68.6 to 76.2 mm) in diameter.
5.2 Mallet or Clicking Machine .
5.3 Rule or Steel Tape, graduated in ⁄32 in. or 0.02 in. or in millimetres.
5.4 Balance and set of weights.
5.5 Thickness Gage as described in Test Method D 1813.
6. Test Specimen
6.1The6.1 The test specimen shall be a disk of leather that has been conditioned as specified in 3.1.1. This specimen may be
the same as that used in Test Method D 2347.
7. Procedure
7.1 Weigh the specimen to the nearest 0.001 g.
This test method is under the jurisdiction of ASTM Committee D-31D31 on Leather and is the direct responsibil
...
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