Color is an intensive property.

it means what color it turns after or before the experiment

The color test is a method used in qualitative analytical chemistry to distinguish between ions, elements, etc.

Each test has a specific color tube.

Kurt Nassau has written:

'The physics and chemistry of color' -- subject(s): Chemistry, Physical and theoretical, Color, Physical and theoretical Chemistry

'Gems made by man' -- subject(s): Artificial Precious stones, Precious stones, Artificial