ASTM D1913-00(2005)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D1913–00(Reapproved2005)
Standard Test Method for
Resistance to Wetting of Garment-Type Leathers
(Spray Test)
This standard is issued under the fixed designation D1913; 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 4. Apparatus
1.1 This test method covers the qualitative evaluation of the 4.1 Spray Tester—The spray tester (see Fig. 1 and Fig. 2)
surface repellency to water of garment-type leathers. This test shall consist of a standard spray nozzle (19 holes, drill No. 65,
method does not apply to wet blue. 0.035 in. (0.89 mm) in diameter) connected by means of ⁄8-in.
1.2 The values stated in inch-pound units are to be regarded (9.5-mm) rubber tubing to the funnel tube of a 6-in. (152-mm)
as standard. The values shown in parentheses are provided for laboratory funnel; and a laboratory ring support which holds
information only. the funnel directly over the center of a 6-in. (152 mm) metal
1.3 This standard does not purport to address all of the embroidery hoop mounted on a block of wood so that the plane
safety concerns, if any, associated with its use. It is the of a specimen held on the hoop makes an angle of 45° with the
responsibility of the user of this standard to establish appro- horizontal. The distance of the nozzle to the center of the
priate safety and health practices and determine the applica- hoop-mounted specimen shall be 6.0 in. (152 mm).
bility of regulatory limitations prior to use. 4.2 Rating Chart.
2. Summary of Test Method 5. Test Specimen
2.1 Water is sprayed against the taut surface of the test 5.1 The minimum size of the test specimen shall be 7 by 7
specimen under controlled conditions, producing a pattern of in.(178by178mm).However,wherenondestructivetestingof
wetting whose size depends on the relative repellency of the skins is desired, the entire skin may be used and tested in any
leather. Evaluation is accomplished by comparing the wetted portion of its area.
pattern with pictures on a standard chart. 5.2 Conditioning of the specimen prior to testing is not
necessary.
3. Significance and Use
6. Procedure
3.1 The procedure is intended primarily to evaluate
garment-type leathers. The test method is qualitative and 6.1 Fasten the specimen securely in the 6-in. (152-mm)
measures the surface-water repellency or surface-water resis- metal hoop so that it presents a smooth, wrinkle-free surface.
tance only. It is not intended for use in determining resistance Place the hoop on the stand of the tester so that the surface to
to water penetration. A visual means is given to evaluate the be evaluated is uppermost and in such a position that the center
relative effects of materials showing water repellency, but no of the spray pattern coincides with the center of the hoop.
comparison is possible with conditions found in actual use. 6.2 Pour 250 mL of water at 80 6 2°F (27 6 1°C) into the
funnel of the tester and allow it to spray onto the test specimen.
This will take approximately 25 to 30 s.
6.3 Upon completion of the spraying period, take the hoop
by one edge, tap it smartly once against a solid object, then
rotate it 180
...