ASTM D2322-00(2001)
(Test Method)Standard Test Method for Resistance of Shoe Upper Leather to Artificial Perspiration
Standard Test Method for Resistance of Shoe Upper Leather to Artificial Perspiration
SCOPE
1.1 This test method covers the determination of the effect of perspiration on shoe upper leather. The leather is subjected to treatment with a formulation of artificial perspiration specific for breakdown of leather. Resistance to grain cracking as measured in accordance with Test Method D2210 and area loss are used as the criterion of deterioration. The artificial perspiration may also affect the flexibility of the leather. However, these effects have not been fully evaluated as criteria of deterioration in this test method. This test method does not apply to wet blue.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in paretheses are provided for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D 2322 – 00 (Reapproved 2001)
Standard Test Method for
Resistance of Shoe Upper Leather to Artificial Perspiration
This standard is issued under the fixed designation D 2322; 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 4.4 Mullen Tester.
1.1 This test method covers the determination of the effect
5. Reagent
of perspiration on shoe upper leather. The leather is subjected
5.1 A solution of artificial perspiration with a pH of 7.5
to treatment with a formulation of artificial perspiration spe-
consisting of the following:
cific for breakdown of leather. Resistance to grain cracking as
Sodium chloride, g 9.0
measured in accordance with Test Method D 2210 and area
Urea, g 1.67
loss are used as the criterion of deterioration. The artificial
Sodium lactate (60 percent sodium lactate), g 86.0
perspiration may also affect the flexibility of the leather.
Disodium phosphate (Na HPO ·12H O), g 0.165
2 4 2
Distilled water to make 1 litre of solution
However, these effects have not been fully evaluated as criteria
Adjust the pH of the solution with lactic acid on ammonium carbonate
of deterioration in this test method. This test method does not
depending on whether acid or base is required to bring pH to 7.5.
apply to wet blue.
6. Test Specimens
1.2 The values stated in inch-pound units are to be regarded
asthestandard.Thevaluesgiveninparethesesareprovidedfor 6.1 Two test specimens 3 by 3 6 0.0625 in. (76 by 76 6 1.5
information only.
mm) each shall be cut from the sample to be evaluated. One
1.3 This standard does not purport to address all of the specimen shall be the control, the other shall be for exposure to
safety concerns, if any, associated with its use. It is the
artificial perspiration. For purposes of identification, the speci-
responsibility of the user of this standard to establish appro- men for exposure to artificial perspiration shall be punched
priate safety and health practices and determine the applica-
(approximate 0.06-in. (1.5-mm) hole) on two corners.
bility of regulatory limitations prior to use.
7. Procedure
2. Referenced Documents
7.1 Condition the control specimen at 23 6 1°C and at a
2.1 ASTM Standards:
relative humidity of 50 6 4 % for 48 h and then test on the
D 2210 Test Method for Grain Crack and Extension of
Mullen Tester for grain crack strength in accordance with Test
Leather by the Mullen Test
Method D 2210.
7.2 Measure all four sides of the punched specimen to the
3. Significance and Use
nearest ⁄64 in. (0.5 mm) and average them. The average
3.1 Thistestmethodgivesanindicationoftheserviceability
measurement shall be squared and used to determine the area
of shoe upper leather in actual wear.
of the specimen. Record area as A.
7.3 Immerse the marked specimen (Note 1) in the glass tray
4. Apparatus
and cover with the artificial perspiration solution to a depth of
4.1 Circulating-Air Oven, capable of maintaining the re-
⁄4 to 1 in. (19 to 25 mm).Work the specimen in the solution by
quired temperature within 62°C.
folding it grain in and rolling the fold, while applying pressure
4.2 Bottle, wide-mouth, ⁄2-gal (1.9-L) with suitable airtight
with the finger tips.As many as three cycles of flexing may be
closure.
required to wet the leather. If leather is still not wet through,
4.3 Glass Tray,1 ⁄2 in. (38 mm) deep.
vacuum soaking may be necessary.
NOTE 1—Only a single layer of specimen should be placed in the
perspiration solution and care should be taken to prevent adjacent
This test method is under the jurisdiction ofASTM Committee D31 on Leather
specimens from coming in contact.
and is the direct responsibility of Subcommittee D31.03 on Footwear. This test
method was developed in cooperation with the American Leather C
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