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OVERVIEW

Application
For assessment of change in colour and staining in colourfastness testing 1-5 steps with half steps.
TU201A  AATCC Gray Scales - Staining
TU201B  AATCC Gray Scales - Changing in color
TU202A  ISO / BS Gray Scales - Staining
TU202B  ISO / BS Gray Scales - Change in color
Standards         AATCC 8/66/165, ISO 2313, BS EN 22313, M&S P2