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Significance and Use
4.1 The materials and construction methods used in the manufacture of footwear play a significant role in the “breathability” of the footwear. This test method provides a means to measure moisture vapor permeability, expressed as MVTR, which is one aspect of comfort of the footwear.
1.1 The whole boot breathability test method is designed to indicate the Moisture Vapor Transmission Rate (MVTR) through the boot upper by means of a difference in temperature and moisture vapor concentration between the interior of the boot and the exterior environment. This method is intended for a size 10 R U.S. (Regular width) boot that is at least 6 in. [15.2 cm] tall above the insole
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way. Combining values from the two systems may result in non-conformance with the standard.
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.
ICS Number Code 13.340.50 (Leg and foot protection); 61.060 (Footwear)
UNSPSC Code 53111500(Boots); 41114708(Water vapor permeability tester)
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ASTM D8041 / D8041M-16, Standard Test Method for Whole Boot Breathability (MVTR), ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top