This part of ISO 105 describes the grey scale for de-termining changes in colour of textiles in colour fast-ness tests, and its use. A precise colorimetric specification of the scale is given as a permanent record against which newly prepared working stan-dards and standards that may have changed can be compared.
BS EN 20105-A02:1995 history
0000 BS EN 20105-A02:1995(1999)
1995BS EN 20105-A02:1995 Textiles. Tests for colour fastness. Grey scale for assessing change in colour
1990BS EN 20105-A02:1994 Textiles - Tests for colour fastness - Grey scale for assessing change in colour (including half-steps)