Colour fastness to organic solvents; Colour fastness to hot pressing; Colour fastness. Assessment of the potential to phenolic yellowing of materials; Colour fastness to washing with soap or soap and soda; and Colour fastness to bleaching: Hypochlorite Method: ISO 105 N01, ISO 105 C10, ISO 105 X18, ISO 105 X11, ISO 105 X05