Grey scales are used for assessing colour change and staining during colour fastness testing. Both scales are used for visual assessment to enable you to specify a rating from 1 to 5.
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- AATCC EP1
- AATCC EP2
- ISO 105-A02
- ISO 105-A03
This product is Grey Scale for assessing Change in Colour - ISO 105 A02
The colour change scale consists of nine pairs of grey coloured chips, from grades 1 to 5 (with four half steps). Grade 5 represents no change and Grade 1 depicts severe change in some standards.