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Test Method: SATRA TM47

Water vapour permeability and absorption

December 2019


This method is intended to determine the amount of water vapour an assembly or a single material will absorb and transmit through its structure in a specified time. The method is mainly applicable to leathers, synthetics and textiles used in footwear uppers and clothing.


An assembly of circular test specimens is clamped across the open end of a vertical cylindrical chamber containing a specified volume of warm water. After a set time the mass of water absorbed by, and transmitted through, the test specimens is measured. The test is designed to give a measure of the ability of a material to remove perspiration from the skin.


EN ISO 3696 – Water for analytical laboratory use – Specification and test methods


First issued circa 1968 (draft). Revised May 1971 (draft), November 1987, April 1997, June 2002, December 2019.


This test method is available to members and non-members.


This price is for a printed copy of the Test Method.

  • Members: £75
  • Non-members: £215



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