Soda is performed
First, the original formula is taken, then the color components taken in strictly measured quantities up to tenths of the gram are mixed, then a trial test-soda is performed and it is decided whether this color is suitable or not.
First, the original formula is taken, then the color components taken in strictly measured quantities up to tenths of the gram are mixed, then a trial test-soda is performed and it is decided whether this color is suitable or not.