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 covers 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.

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Historical
Publication Date
14-May-2012
Current Stage
Ref Project

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ASTM F1900-98(2012) - Standard Test Method for Water Resistance of Footwear Using a Walking Step Simulator
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: F1900 − 98 (Reapproved 2012) An American National Standard
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
walking motion. The important features of the walking motion
1.2 This standard does not purport to address all of the
produced by the mechanism are defined as follows:
safety concerns, if any, associated with its use. It is the
4.1.1 At the beginning of a step (the point where the heel of
responsibility of the user of this standard to establish appro-
the footwear touches the walking surface) the leg pylon
priate safety and health practices and determine the applica-
attached to the prosthetic foot shall form an angle of 16 6 5°
bility of regulatory limitations prior to use.
(relative to a line perpendicular to the walking surface) as
shown in Fig. 2.
2. Referenced Documents
4.1.2 At the end of a step (the point where the toe of the
2.1 ASTM Standards:
footwear departs from the walking surface) the leg pylon shall
D2098 Test Method for Dynamic Water Resistance of Shoe
form an angle 31 6 5° (see Fig. 2).
Upper Leather by the Dow Corning Leather Tester
4.1.3 Each step shall begin with no force being exerted on
D2099 Test Method for Dynamic Water Resistance of Shoe
the footwear and with the footwear not in contact with the
Upper Leather by the Maeser Water Penetration Tester
walking surface. When the footwear contacts the walking
2.2 SATRA Test Method:
surface, it shall remain in contact during the entire support
Physical Test Method PM81 Trough-Water Penetration Test
phase of the step and then depart from the walking surface at
the end of the step.
2.3 FIA Test Methods:
4.1.4 During the support phase of each step, a downward
No. 1209, Appendix B—Whole Shoe Flex in Water
force shall be applied to the footwear to simulate the weight of
3. Significance and Use the user. The force shall equal one bodyweight of the typical
prospective user, with a tolerance of 610 %, unless a different
3.1 Water resistance is a desirable characteristic for many
force is specified. Table 1 lists the body masses of 50th
different types of footwear. This test method provides a guide
percentile adults and children, and the equivalent one body-
for measuring water resistance under dynamic conditions that
weight downward force levels. If no other downward force is
closely duplicate normal human walking. The degree of
specified, the values in Table 1 shall be used.
correlation between this test and footwear performance in the
field or footwear performance in the SATRA Trough-Water NOTE 1—The force under the prosthetic foot can be measured with a
load cell or force plate.
Penetration Test has not been fully determined.
4.2 Men’s 26-cm (U.S. Size 9) or Women’s 24-cm (U.S. Size
7)RightorLeftProstheticFoot,shallbeusedunlessadifferent
size is specified. The foot shall closely approximate the shape,
This test method is under the jurisdiction of ASTM Committee F08 on Sports
Equipment and Facilitiesand is the direct responsibility of Subcommittee F08.54 on
texture, and flexibility of a human foot.
Athletic Footwear.
4.2.1 Aminimum of six moisture sensors shall be placed at
Current edition approved May 15, 2012. Published August 2012. Originally
the following locations on the prosthetic foot: instep, big toe,
approved in 1998. Last previous edition approved in 2004 as F1900 – 98 (2004).
DOI: 10.1520/F1900-98R12. inner and outer ball, and inner and outer heel, as illustrated in
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Fig. 3.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.2 The moisture sensors shall determine the presence of
Standards volume information, refer to the standard’s Document Summary page on
water. A circuit diagram for a sensor that has proven to be
the ASTM website.
Available from SATRA Footwear Technology Centre, Rockingham Road,
suitable for this application is shown in Fig. 4.
Kettering, Northamptonshire, NN16 9JH, United Kingdom.
4.3 Water Tank, made of stainless steel (or other corrosion-
Available from Footwear Industries of America, 1420 K St. NW, Suite 600,
Washington, DC. resistant material). The tank shall be large enough so that the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1900 − 98 (2012)
(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
upper portion of a shoe or boot does not come in contact with sensors, and records the number of steps that have been
the tank at any time during the test. The tank should have an accomplished when the sensors become “wet.”
opening in the front, that is covered by transparent material, to
permit observation of the footwear during the test.
5. Reagents
4.4 Recording Device, that counts the number of steps
5.1 Tap Water, 20 to 25°C.
(cycles)thatthefootwearissubjectedto,monitorsthemoisture
F1900 − 98 (2012)
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
etc., may be glued, using
...

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