COLOR CARD COPPER TEST
1. Rinse and fill 5 mL test cell (#9017) to 5 mL mark with water to be tested.
2. Add 10 drops of R-0642 Copper Buffer. Cap and mix.
3. Add 10 drops of R-0643 Thiocarbamate Reagent. Cap and mix. Remove cap.
4. Place bottom of test cell on white area of Color Card (#5432). View from top through solution. Match color in test cell with a color standard. Record as parts per million (ppm) copper.