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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.