ISO 105-A02:1993 Preview
Textiles -- Tests for colour fastness -- Part A02: Grey scale for assessing change in colour
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
Describes the grey scale for determining changes in colour of textiles in colour fastness tests, and its use. A precise colorimetric specification of the scale is given as a permanent record against which newly prepared working standards and standards that may have changed can be compared. The essential scale (5 steps) consists of pairs of non-glossy grey colour chips (or swatches of grey cloth). In addition, an augmented scale includes four half-steps and, thus, 9 steps.
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