ASTM F1900-98(2004)
(Test Method)Standard Test Method for Water Resistance of Footwear Using a Walking Step Simulator
Standard Test Method for Water Resistance of Footwear Using a Walking Step Simulator
SIGNIFICANCE AND USE
Water resistance is a desirable characteristic for many different types of footwear. This test method provides a guide for measuring water resistance under dynamic conditions that closely duplicate normal human walking. The degree of correlation between this test and footwear performance in the field or footwear performance in the SATRA Trough-Water Penetration Test has not been fully determined.
SCOPE
1.1 This test method describes a method of measuring the water resistance of footwear.
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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:F1900–98 (Reapproved 2004)
Standard Test Method for
Water Resistance of Footwear Using a Walking Step
Simulator
This standard is issued under the fixed designation F1900; 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 a method of measuring the 4.1 Mechanism, such as the one shown in Fig. 1, that
water resistance of footwear. approximates the movements and forces involved in human
1.2 This standard does not purport to address all of the walking motion. The important features of the walking motion
safety concerns, if any, associated with its use. It is the produced by the mechanism are defined as follows:
responsibility of the user of this standard to establish appro- 4.1.1 At the beginning of a step (the point where the heel of
priate safety and health practices and determine the applica- the footwear touches the walking surface) the leg pylon
bility of regulatory limitations prior to use. attached to the prosthetic foot shall form an angle of 16 6 5°
(relative to a line perpendicular to the walking surface) as
2. Referenced Documents
shown in Fig. 2.
2.1 ASTM Standards:
4.1.2 At the end of a step (the point where the toe of the
D2098 Test Method for Dynamic Water Resistance of Shoe footwear departs from the walking surface) the leg pylon shall
Upper Leather by the Dow Corning Leather Tester
form an angle 31 6 5° (see Fig. 2).
D2099 Test Method for Dynamic Water Resistance of Shoe 4.1.3 Each step shall begin with no force being exerted on
Upper Leather by the Maeser Water Penetration Tester
the footwear and with the footwear not in contact with the
2.2 SATRA Test Method: walking surface. When the footwear contacts the walking
Physical Test Method PM81 Trough-Water Penetration Test
surface, it shall remain in contact during the entire support
2.3 FIA Test Methods: phase of the step and then depart from the walking surface at
No. 1209, Appendix B—Whole Shoe Flex in Water
the end of the step.
4.1.4 During the support phase of each step, a downward
3. Significance and Use
force shall be applied to the footwear to simulate the weight of
3.1 Water resistance is a desirable characteristic for many
the user. The force shall equal one bodyweight of the typical
different types of footwear. This test method provides a guide
prospective user, with a tolerance of 610 %, unless a different
for measuring water resistance under dynamic conditions that
force is specified. Table 1 lists the body masses of 50th
closely duplicate normal human walking. The degree of
percentile adults and children, and the equivalent one body-
correlation between this test and footwear performance in the
weight downward force levels. If no other downward force is
field or footwear performance in the SATRA Trough-Water
specified, the values in Table 1 shall be used.
Penetration Test has not been fully determined.
NOTE 1—The force under the prosthetic foot can be measured with a
load cell or force plate.
This test method is under the jurisdiction of ASTM Committee F08 on Sports
4.2 Men’s 26-cm (U.S. Size 9) or Women’s 24-cm (U.S. Size
Equipment and Facilities and is the direct responsibility of Subcommittee F08.54 on
7)RightorLeftProstheticFoot,shallbeusedunlessadifferent
Athletic Footwear.
size is specified. The foot shall closely approximate the shape,
Current edition approved May 1, 2004. Published May 2004. Originally
approved in 1998. Last previous edition approved in 1998 as F1900 - 98. DOI: texture, and flexibility of a human foot.
10.1520/F1900-98R04.
4.2.1 Aminimum of six moisture sensors shall be placed at
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the following locations on the prosthetic foot: instep, big toe,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
inner and outer ball, and inner and outer heel, as illustrated in
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Fig. 3.
Available from SATRA Footwear Technology Centre, Rockingham Road,
4.2.2 The moisture sensors shall determine the presence of
Kettering, Northamptonshire, NN16 9JH, United Kingdom.
4 water. A circuit diagram for a sensor that has proven to be
Available from Footwear Industries of America, 1420 K St. NW, Suite 600,
Washington, DC. suitable for this application is shown in Fig. 4.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1900–98 (2004)
(1) Prosthetic foot with moisture sensors
(2) Water tank
(3) Motor with speed control
(4) Mechanism for producing back and forth motion
(5) Cam to control location of knee
(6) Cam to control location of ankle
(7) Slide mechanism
(8) Air cylinder to lower the foot at the beginning of each step and raise it again at the completion of each
step
FIG. 1 Footwear Tester
4.3 Water Tank, made of stainless steel (or other corrosion- opening in the front, that is covered by transparent material, to
resistant material). The tank shall be large enough so that the permit observation of the footwear during the test.
upper portion of a shoe or boot does not come in contact with 4.4 Recording Device, that counts the number of steps
the tank at any time during the test. The tank should have an (cycles)thatthefootwearissubjectedto,monitorsthemoisture
F1900–98 (2004)
FIG. 2 Typical Ranges of Motion During Ground Contact During Walking at 3.2 kph (2.0 mph)
TABLE 1 Body Masses and Equivalent One Bodyweight
7.2 Precautions—In order to prevent unwanted water pen-
Downward Force Levels of 50th Percentile Adults and Children
etration, fo
...
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