ASTM D5052 – Standard Test Method for Permeability of Leather to Water Vapor
Description:
Significance and Use
4.1 This test method is intended for use on all types of leathers.
4.2 Water vapor permeability is one of several factors contributing to the relative comfort of footwear, handwear, and garments.
Scope
1.1 This test method covers the determination of the permeability of leather to water vapor by measuring the rate at which water vapor passes through a test specimen. This test method does not apply to wet blue.
1.2 The values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents, therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.


ASTM D5048