ASTM D1815-00(2021)

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: D1815 − 00 (Reapproved 2021)
Standard Test Method for
Water Absorption (Static) of Vegetable Tanned Leather
This standard is issued under the fixed designation D1815; 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 5. Significance and Use
1.1 This test method covers the determination of the amount 5.1 This test method is currently used to determine compli-
of water absorbed by leather at 23 6 2 °C by immersion under ance with specifications for water absorption of impregnated
static conditions. It may be used on all types of leather, but is sole leather. The significance of the test method is limited by
particularly adapted to vegetable-tanned sole leather. This test thestaticconditionsemployed,andtheresultsdonotreflectthe
method does not apply to wet blue. water absorption under the dynamic conditions of flexing. The
result may be corrected, if required, for any water-soluble
1.2 This standard does not purport to address all of the
material removed from the leather during the test.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Apparatus
priate safety, health, and environmental practices and deter-
6.1 Immersion Dish, glass or other noncorrosive material,
mine the applicability of regulatory limitations prior to use.
having a flat bottom at least 3 by 5 in. (76 by 127 mm).
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
6.2 Balance, sensitive to 0.01 g.
ization established in the Decision on Principles for the
6.3 Steel Scale or Tape, conforming to the requirements in
Development of International Standards, Guides and Recom-
Section 4 of Test Method D1516.
mendations issued by the World Trade Organization Technical
6.4 Thickness Gauge, conforming to the requirements in
Barriers to Trade (TBT) Committee.
Section 4 of Test Method D1813.
2. Referenced Documents
6.5 Blotting Paper or Filter Paper.
2.1 ASTM Standards:
6.6 Drying Oven.
D1516 Test Method for Width of Leather
D1517 Terminology Relating to Leather
6.7 Pieces of Glass Rod, for supporting and weighting the
D1813 Test Method for Measuring Thickness of Leather specimen.
Test Specimens
6.8 Crystallizing Dish, borosilicate glass, 50 mm tall, 70
mm in outside diameter.
3. Terminology
3.1 For definitions of leather terms used in this standard
7. Test Specimen
refer to Terminology D1517.
7.1 The test specimen shall be a rectangle of leather
4. Summary of Test Method
approximately 2 by 4 in. (51 by 102 mm).
4.1 In this test method the amount of water absorbed by a
7.2 Unless otherwise specified in the detail specification,
leather specimen is measured at room temperature with all
one specimen from each test unit of sample shall be tested.
surfaces exposed to water.
8. Procedure
This test method is under the jurisdiction ofASTM Committee D31 on Leather
8.1 Determine the length, width, and thickness of the
and is the direct responsibility of Subcommittee D31.07 on Physical Properties.This
specimen in accordance with Test Method D1516 and Test
test method was developed in cooperation with the American Leather Chemists
Method D1813. Calculate its volume in cubic centimetres.
Assn. (Standard Method E30 – 1956).
Current edition approved Sept. 1, 2021. Published October 2021. Originally
8.2 Weigh the specimen to the nearest 0.01 g and record this
approved in 1962. Last previous edition approved in 2015 as D1815 – 00 (2015).
mass as W .
DOI: 10.1520/D1815-00R21. 1
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.3 Place the specimen in the immersion dish in a horizontal
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
position with the grain side up. Support it on glass rods or
Standards
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