ASTM D1813-13(2023)

Standard Test Method for Measuring Thickness of Leather Test Specimens

SIGNIFICANCE AND USE
3.1 This test method shall be used where precise dimensions are necessary for calculation of properties expressed in physical units. It is not intended to replace practical thickness measurements based on commercial portable tools, nor is it implied that thickness measurements made by the two procedures will agree exactly.
SCOPE
1.1 This test method covers the measurement of the thickness of leather test specimens in which the dimensions of the specimens are used directly in determining the results of tests for physical properties. This test method does not apply to wet blue.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Dec-2022
• ICS: 59.140.30 - Leather and furs
• Technical Committee: D31 - Leather
• Drafting Committee: D31.07 - Physical Properties

Relations

• Refers: ASTM D1610-01(2013) - Standard Practice for Conditioning Leather and Leather Products for Testing
• Effective Date: 01-May-2013
• Refers: ASTM D1610-01(2007) - Standard Practice for Conditioning Leather and Leather Products for Testing
• Effective Date: 01-Apr-2007
• Refers: ASTM D1610-01 - Standard Practice for Conditioning Leather and Leather Products for Testing
• Effective Date: 10-May-2001
• Refers: ASTM D1610-00 - Standard Practice for Conditioning Leather and Leather Products for Testing
• Effective Date: 10-May-2001

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1813 − 13 (Reapproved 2023)
Standard Test Method for
Measuring Thickness of Leather Test Specimens
This standard is issued under the fixed designation D1813; 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 U.S. Department of Defense.
1. Scope measurements based on commercial portable tools, nor is it
implied that thickness measurements made by the two proce-
1.1 This test method covers the measurement of the thick-
dures will agree exactly.
ness of leather test specimens in which the dimensions of the
specimens are used directly in determining the results of tests
4. Apparatus
for physical properties. This test method does not apply to wet
4.1 Gauge, equipped with a dial micrometer, a flat anvil,
blue.
and a presser foot loaded by a dead mass.
1.2 The values stated in inch-pound units are to be regarded
4.2 Dial, graduated to read to the nearest 0.01 mm, with
as standard. The values given in parentheses are mathematical
small second dial graduated to read to the nearest 1 mm or to
conversions to SI units that are provided for information only
the nearest 0.001 in. and 0.1 in. respectively.
and are not considered standard.
4.3 Anvil, flat, with a diameter of 0.395 in. 6 0.02 in.
1.3 This standard does not purport to address all of the
(10 mm 6 0.5 mm) and projecting 0.1 in. (2.5 mm) from the
safety concerns, if any, associated with its use. It is the
surface of a flat circular platform about 2 in. (50 mm) in
responsibility of the user of this standard to establish appro-
diameter.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.4 Presser Foot, having a flat surface 0.395 in. 6 0.02 in.
1.4 This international standard was developed in accor-
(10 mm 6 0.5 mm) in diameter, and can be lifted by a lever at
dance with internationally recognized principles on standard-
least 13 mm or 0.5 in. It shall be dead-mass loaded to exert a
ization established in the Decision on Principles for the
total load of 13.86 oz 6 0.35 oz (393 g 6 10 g) on the
Development of International Standards, Guides and Recom-
specimen. The load is equivalent to 500 g/cm . The contacting
mendations issued by the World Trade Organization Technical
surface of the presser foot and the surface of the anvil shall be
Barriers to Trade (TBT) Committee.
parallel within 0.0001 in. (0.0025 mm).
2. Referenced Documents 5. Test Specimen
2.1 ASTM Standards:
5.1 The test specimen shall be a piece of leather that has
D1610 Practice for Conditioning Leather and Leather Prod- been conditioned according to Practice D1610 and cut to the
ucts for Testing
dimensions required for the particular physical test.
3. Significance and Use 6. Procedure
6.1 Place the specimen on the anvil, and lower the presser
3.1 This test method shall be used where precise dimensions
footgently(donotdrop)untilitrestsonthespecimen.Takethe
are necessary for calculation of properties expressed in phys
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