How blue should it be?
No doubt, this question has been posed upon the forum from time to time. After adding about 40 drops of R-0012-A, the sample loses the pink color and appears crystal clear. I wouldn't call it blue but there is certainly no hint of red at all. I continued to 55 drops and it still remained essentially colorless. Do I call it good when the pink is gone or do I keep adding until I see some blue? Viewing it with hot lamp doesn't help, nor does viewing it against a white background in the direct sunlight.