Astm D 5052 – 00 pdf free download

Standard Test Method for
Permeability of Leather to Water Vapor1

This standard is issued under the fixed designation D 5052; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. 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 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.

2. Referenced Documents

2.1 ASTM Standards:
D 1610 Practice for Conditioning Leather and Leather
Products for Testing2

3. Summary of Test Method

3.1 In this test method the water vapor permeability is
measured after the test specimen is exposed to moist air on one
side and dry air on the other side.

4. Significance and Use

4.1 This test method is intended for use on all types of
leather.

4.2 Water vapor permeability is one of several factors
contributing to the relative comfort of footwear, handwear, and
garments.

5. Apparatus

5.1 Analytical Balance, accurate to 0.001 g.

5.2 Permeability Apparatus, as shown in Fig. 1. It shall
consist of an aluminum cup having approximately the dimensions shown in Fig. 2 and a template, 1⁄8 in. thick and 2.225 6