Test Method: SATRA TM335
Colour fastness to water or perspiration (petri-dish method)
This method is intended to determine the likelihood of colour bleeding from a material due to the action of water or perspiration. The method is applicable to all types of material and in particular those used for the manufacture of footwear uppers and clothing.
A test specimen, in contact with a standard multifibre fabric, is soaked in:
Method 1 – Distilled or deionised water.
Method 2 – Alkaline solution of artificial perspiration.
Method 3 – Acid solution of artificial perspiration.
The test specimen assembly is then sandwiched between two glass surfaces under a standard pressure and stored in a warm environment for a set time. The test specimen and the multifibre fabric are dried separately and the change in their colour is assessed subjectively with grey scales.
BS 950-1:1967. Specification for artificial daylight for the assessment of colour. Illuminant for colour matching and colour appraisal.
EN 20105 – AO2: 1995 – Methods of test for colour fastness of textiles and leather – Grey scale for assessing change in colour.
EN 20105 – AO3: 1995 – Methods of test for colour fastness of textiles and leather – Grey scale for assessing staining.
First issued March 1989. Revised December 1994, February 2018.
This test method is available to members and non-members.
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