Test Method: SATRA TM47

Water vapour permeability and absorption

December 2019

SCOPE

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.

PRINCIPLE

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.

REFERENCES

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

HISTORY

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

AVAILABILITY

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

PRICE (ex. VAT)

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

• Members: £75
• Non-members: £215

TYPE

• Water transmission

USAGES

• Leather - uppers and linings
• Textiles and coated textiles, including synthetic uppers and linings