Standard Test Method for Water Absorption (Static) of Vegetable Tanned Leather

SCOPE
1.1 This test method covers the determination of the amount of water absorbed by leather at 23 + 2°C by immersion under static conditions. It may be used on all types of leather, but is particularly adapted to vegetable-tanned sole 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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Historical
Publication Date
09-Sep-2000
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM D1815-00 - Standard Test Method for Water Absorption (Static) of Vegetable Tanned Leather
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1815–00
Standard Test Method for
Water Absorption (Static) of Vegetable Tanned Leather
This standard is issued under the fixed designation D 1815; 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.
1. Scope result may be corrected, if required, for any water-soluble
material removed from the leather during the test.
1.1 This test method covers the determination of the amount
of water absorbed by leather at 23 6 2°C by immersion under
6. Apparatus
static conditions. It may be used on all types of leather, but is
6.1 Immersion Dish, glass or other noncorrosive material,
particularly adapted to vegetable-tanned sole leather. This test
having a flat bottom at least 3 by 5 in. (76 by 127 mm).
method does not apply to wet blue.
6.2 Balance, sensitive to 0.01 g.
1.2 This standard does not purport to address all of the
6.3 Steel Scale or Tape, conforming to the requirements in
safety concerns, if any, associated with its use. It is the
Section 2 of Test Method D 1516.
responsibility of the user of this standard to establish appro-
6.4 Thickness Gage, conforming to the requirements in
priate safety and health practices and determine the applica-
Section 3 of Test Method D 1813.
bility of regulatory limitations prior to use.
6.5 Blotting Paper or Filter Paper.
2. Referenced Documents 6.6 Drying Oven.
6.7 Pieces of Glass Rod, for supporting and weighting the
2.1 ASTM Standards:
specimen.
D 1516 Test Method for Width of Leather
6.8 Crystallizing Dish, borosilicate glass, 50 mm tall, 70
D 1517 Terminology Relating to Leather
mm in outside diameter.
D 1813 Test Method for Measuring Thickness of Leather
Test Specimens
7. Test Specimen
3. Terminology 7.1 The test specimen shall be a rectangle of leather
approximately 2 by 4 in. (51 by 102 mm).
3.1 For definitions of leather terms used in this standard
7.2 Unless otherwise specified in the detail specification,
refer to Terminology D 1517.
one specimen from each test unit of sample shall be tested.
4. Summary of Test Method
8. Procedure
4.1 In this test method the amount of water absorbed by a
8.1 Determine the length, width, and thickness of the
leather specimen is measured at room temperature with all
specimen in accordance with Test Method D 1516 and Test
surfaces exposed to water.
Method D 1813. Calculate its volume in cubic centimetres.
5. Significance and Use
8.2 Weigh the specimen to the nearest 0.01 g and record this
mass as W .
5.1 This test method is currently used to determine compli- 1
8.3 Place the specimen in the immersion dish in a horizontal
ance with specifications for water absorption of impregnated
position with the grain side up. Support it on glass rods or
sole leather. The significance of the test method is limited by
beads and weighted with pieces of glass rod to keep it
thestaticconditionsemployed,andtheresultsdonotreflectthe
immersed. Carefully pour distilled water at 23 6 2°C into the
water absorption under the dynamic conditions of flexing. The
dish until the specimen is fully immersed, using at least 10 g of
water per gram of specimen.
1 8.4 Leave the specimen immersed for a period of 30 min, 2
This test method is under the jurisdiction ofASTM Committee D31 on Leather
h, or 24 h, as required.
and is the direct responsibility of Subcommittee D31.07 on Physical Properties—
General. This test method was developed in cooperation with theAmerican Leather
8.5 At the end of the immersion period, remove the speci-
Chemists Assn. (Standard Method E 30 – 1956).
men and blot the surface water with filter
...

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