TM204-TM 204 Water Vapor Transmission of Textiles

Description

PURCHASED TEST METHODS ARE DELIVERED AS A LINK IN YOUR EMAILED RECEIPT.

AATCC TM204-2019, Water Vapor Transmission of Textiles

1. Purpose and Scope

   1.1 This test method is used to determine the relative rate of water vapor transmission of textiles.

2. Principle

    2.1 Test and control specimens are attached to water-filled canning jars where the fabric replaces the flat lid. The jars are weighed and suspended in a water bath at 54°C (129°F) for 24 h. The amount of water vapor that passes through the specimens is determined by re-weighing each jar at the end of the 24 h test and subtracting from the original weights. Vapor transmission through test specimens is reported as a percentage of
the average loss through control specimens. Vapor transmission may also be reported in units of g/m2/24 h.

Copyright American Association of Textile Chemists and Colorists, RTP, NC, USA. All rights reserved.

The above information is only a summary of the AATCC test method.