ASTM D2347-00(2010)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D2347 − 00(Reapproved 2010)
Standard Test Method for
Measuring Area of Leather Test Specimens
This standard is issued under the fixed designation D2347; 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.
1. Scope measurements could be used are for the apparent density of
leather and the resistance of leather to synthetic perspiration
1.1 This test method covers the measurement of the surface
solution.
area of leather test specimens. Unless otherwise specified, the
surface to be measured shall be the grain surface or the surface
5. Apparatus
most closely adjacent to the grain surface. This test method
5.1 Die, of appropriate size for round or rectangular leather
does not apply to wet blue.
specimens, having uniform dimensions in the 50 to 80 mm
1.2 The values stated in SI units are to be regarded as
range. When rigid and thick leathers, such as sole leathers, are
standard. No other units of measurement are included in this
being measured, a knife may be used to produce the test
standard.
specimen provided straight edges are obtained.
1.3 This standard does not purport to address all of the
5.2 Mallet or Clicking Machine.
safety concerns, if any, associated with its use. It is the
5.3 Rule or Steel Tape, graduated to 1.0 mm.
responsibility of the user of this standard to establish appro-
5.4 Caliper, graduated to 1.0 mm (recommended for sole
priate safety and health practices and determine the applica-
leather).
bility of regulatory limitations prior to use.
6. Test Specimen
2. Referenced Documents
6.1 The specimen shall be a circular or rectangular piece of
2.1 ASTM Standards:
leather cut from leather sides or skins that have been condi-
D1610 Practice for Conditioning Leather and Leather Prod-
tioned in accordance with Practice D1610 for 48hinan
ucts for Testing
atmosphere maintained at 73.4 6 1.8°F (23 6 1°C) and 50 6
4 % relative humidity.
3. Terminology
6.2 The specimens used in this test method generally range
3.1 Definitions of Terms Specific to This Standard:
in area from 1500 to 10 000 mm .
3.1.1 area of a circular specimen—the average diameter
π
6.3 Do not die out or cut specimens from areas that show
squared and multiplied by and reported to the nearest 1 mm .
surface defects such as indentations, creases, or cuts.
3.1.2 area of a rectangular specimen—the product of the
average distance across the width of the grain surface multi-
7. Procedure
plied by the average distance across the length of the grain
7.1 Place the specimen with the grain side up on a flat
surface of the leather specimen to the nearest 1 mm .
surface and spread it out without pulling or stretching. Using a
rule or steel tape for flexible leathers and a caliper for sole
4. Significance and Use
leathers, make three measurements equally spaced along the
4.1 This test method is designed to measure the area of
widthandthreemeasurementsalongthelengthofthespecimen
specimens before and after they are subjected to various tests
to the nearest 1.0 mm.
that may effect surface area. Two test procedures wherein such
7.2 Measure the diameter of the specimen by
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