ASTM D2098-13
(Test Method)Standard Test Method for Dynamic Water Resistance of Shoe Upper Leather by the Dow Corning Leather Tester
Standard Test Method for Dynamic Water Resistance of Shoe Upper Leather by the Dow Corning Leather Tester
SIGNIFICANCE AND USE
3.1 This test method is intended to estimate the water resistance of shoe upper leather. The flex imparted to the leather is a magnification of the flex given the vamp of the shoe in actual wear.Note 1—There is an indication that this test method cannot be used interchangeably for specification purposes with Test Method D2099.
SCOPE
1.1 This test method covers the determination of the dynamic water resistance of shoe upper leather by means of the Dow Corning Tester. It has been revised to show the state of the art in the equipment used in testing. It is applicable to all types of shoe upper leather. This test method does not apply to wet blue.
1.2 Initial water penetration and water absorption can be measured.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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: D2098 − 13
Standard Test Method for
Dynamic Water Resistance of Shoe Upper Leather by the
1
Dow Corning Leather Tester
This standard is issued under the fixed designation D2098; 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.
NOTE 1—There is an indication that this test method cannot be used
1. Scope
interchangeably for specification purposes with Test Method D2099.
1.1 This test method covers the determination of the dy-
namic water resistance of shoe upper leather by means of the
4. Apparatus
DowCorningTester.Ithasbeenrevisedtoshowthestateofthe
4.1 Balance, sensitive to 0.01 g.
art in the equipment used in testing. It is applicable to all types
3
4.2 Dow Corning Leather Tester, as shown in Fig. 1,orits
of shoe upper leather. This test method does not apply to wet
equivalent. The essential features of the machine are as
blue.
follows:
1.2 Initial water penetration and water absorption can be
4.2.1 Aspecimen holder made of two vertical clamps. Each
measured.
clamp shall have two stainless steel arms (7.5 by 0.5 by 0.5 in.
1.3 The values stated in inch-pound units are to be regarded
(190.5 by 12.7 by 12.7 mm)), one arm fixed, the other
as standard. The values given in parentheses are mathematical
moveable. One clamp shall be mounted on a horizontal
conversions to SI units that are provided for information only
reciprocating shaft, that is, attached by a connecting link to a
and are not considered standard.
motor driven eccentric, which turns at 60 r/min. The bottom of
the clamps shall be in the same horizontal plane. In one
1.4 This standard does not purport to address all of the
rotation of the eccentric, the minimum distance between
safety concerns, if any, associated with its use. It is the
clamps shall be 1.50 6 0.01 in. (38.16 0.25 mm) (inside
responsibility of the user of this standard to establish appro-
measurement)andthemaximumdistancebetweenclamps2.50
priate safety and health practices and determine the applica-
6 0.01 in. (63.5 6 0.25 mm) (inside measurement).
bility of regulatory limitations prior to use.
4.2.2 Water Tank made of stainless steel or other noncorro-
2. Referenced Documents
sive material. It shall be of such a size that it can be placed
2
around the clamps, and of such a depth that when in position
2.1 ASTM Standards:
for use, the top of the pan is at least 2.5 in. (63.5 mm) above
D1610 Practice for Conditioning Leather and Leather Prod-
the bottom of the clamps, and the bottom of the pan is at least
ucts for Testing
0.5 in. (12.7 mm) below the bottom of the clamps.
D2099 Test Method for Dynamic Water Resistance of Shoe
4.2.3 Two systems shall be used to record the number of
Upper Leather by the Maeser Water Penetration Tester
cycles through which the specimen is flexed. One shall be a
3. Significance and Use
mechanical reset counter connected to the movable clamp.The
other system shall be electrical (see Fig. 2). The resistance
3.1 This test method is intended to estimate the water
across the electrodes shall be 7500 6 500 ohms. The sensing
resistance of shoe upper leather. The flex imparted to the
electrode shown is inside a leather specimen filled with
leatherisamagnificationoftheflexgiventhevampoftheshoe
stainless-steel balls. The common electrode is in a salt solution
in actual wear.
which is in continuous contact with the specimen during
flexing. Switch S when manually closed starts an electrical
1
This test method is under the jurisdiction ofASTM Committee D31 on Leather
impulse counter actuated by a micro switch, EC, which makes
and is the direct responsibility of Subcommittee D31.03 on Footwear. This test
method was developed in cooperation with the American Leather Chemists Assn.
Current edition approved Nov. 1, 2013. Published November 2013. Originally
3
approved in 1962 as D2098–62T. Last previous edition approved in 2012 as The sole source of supply of the apparatus known to the committee at this time
D2098–04(2012). DOI: 10.1520/D2098-13. is Koehler Instrument Co., 1595 Sycamore Ave., Bohemia, NY 11716. Telephone:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or (800) 878-9070. Fax: (516) 589-3815. If you are aware of alternative suppliers,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM pleaseprovidethisinformationtoASTMHeadquarters.Yourcommentswillreceive
Standards volume information, refer to the standard’s Document Summary page on careful consideration at a meeting of the responsible technical committee, which
the A
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2098 − 04 (Reapproved 2012) D2098 − 13
Standard Test Method for
Dynamic Water Resistance of Shoe Upper Leather by the
1
Dow Corning Leather Tester
This standard is issued under the fixed designation D2098; 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 Department of Defense.
1. Scope
1.1 This test method covers the determination of the dynamic water resistance of shoe upper leather by means of the Dow
Corning Tester. It has been revised to show the state of the art in the equipment used in testing. It is applicable to all types of shoe
upper leather. This test method does not apply to wet blue.
1.2 Initial water penetration and water absorption can be measured.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1610 Practice for Conditioning Leather and Leather Products for Testing
D2099 Test Method for Dynamic Water Resistance of Shoe Upper Leather by the Maeser Water Penetration Tester
3. Significance and Use
3.1 This test method is intended to estimate the water resistance of shoe upper leather. The flex imparted to the leather is a
magnification of the flex given the vamp of the shoe in actual wear.
NOTE 1—There is an indication that this test method cannot be used interchangeably for specification purposes with Test Method D2099.
4. Apparatus
4.1 Balance, sensitive to 0.01 g.
3
4.2 Dow Corning Leather Tester, as shown in Fig. 1, or its equivalent. The essential features of the machine are as follows:
4.2.1 A specimen holder made of two vertical clamps. Each clamp shall have two stainless steel arms (7.5 by 0.5 by 0.5 in.
(190.5 by 12.7 by 12.7 mm)), one arm fixed, the other moveable. One clamp shall be mounted on a horizontal reciprocating shaft,
that is, attached by a connecting link to a motor driven eccentric, which turns at 60 r/min. The bottom of the clamps shall be in
the same horizontal plane. In one rotation of the eccentric, the minimum distance between clamps shall be 1.50 6 0.01 in. (38.16
0.25 mm) (inside measurement) and the maximum distance between clamps 2.50 6 0.01 in. (63.5 6 0.25 mm) (inside
measurement).
1
This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.03 on Footwear. This test method
was developed in cooperation with the American Leather Chemists Assn.
Current edition approved Sept. 1, 2012Nov. 1, 2013. Published September 2012November 2013. Originally approved in 1962 as D2098–62T. Last previous edition
approved in 20082012 as D2098–04(2008).D2098–04(2012). DOI: 10.1520/D2098-04R12.10.1520/D2098-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The sole source of supply of the apparatus known to the committee at this time is Koehler Instrument Co., 1595 Sycamore Ave., Bohemia, NY 11716. Telephone: (800)
878-9070. Fax: (516) 589-3815. If you are aware of alternative suppliers, please provide this information to ASTM Headquarters. Your comments will receive careful
consideration at a meeting of the responsible technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2098 − 13
FIG. 1 Dow Corning Leather Tester
4.2.2 Water Tank made of stainless steel or other noncorrosive material. It shall be of such a size that it can be placed around
the clamps, and of such a depth that when in position for use, the top of the pan is at least 2.5 in. (63.5 mm) above the bottom
of the clamps, and the bottom of the pan is
...
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