BSI - BS EN 20105-A02
Textiles. Tests for colour fastness. Grey scale for assessing change in colour (including half-steps)
|Publication Date:||15 July 1990|
|ICS Code (Textiles in general):||59.080.01|
|ICS Code (Leather and furs):||59.140.30|
Ten pairs of areas in white or grey exhibiting five degrees of contrast which increase geometrically.