BS EN ISO 105-A03:2019 Textiles. Tests for colour fastness Grey scale for assessing staining

Colorimetric characteristics
Textiles
Tolerances (measurement)
Colour fastness
Comparative tests
Colour
Grades (quality)
Colour tests
Fabric testing
Visual inspection (testing)
Stain tests
Textile testing
Textile products
Colour-fastness tests

Link: BS EN ISO 105-A03:2019 Textiles. Tests for colour fastness Grey scale for assessing staining
Source: BSI Standards