This kit measures all types of copper to less than 0.01 mg/L in marine or freshwater. It uses a highly sensitive catalysis based procedure. MultiTest™: Copper performs over 75 tests and contains a reference sample for validation. Range: 0–0.80 mg/L. Precision: 0.025mg/L & 0.0025 mg/L.
A: Actually, that amount of powder should last for all 75 tests. It only takes a few granules of the powder for the kit to work properly.
A: Yes, the included reference solution has a known value of 0.5mg/L. We recommend running your tank sample at the same time as the reference sample in the white well plate. This will help you to gauge the level of copper you have in your system based on the reference solution results. Keep in mind, that you use the reference solution in place of your tank sample when you run the reference test. You will also use 3 drops of Copper Reagent 2 in Step 2 when testing the reference solution.
A: You should not have to wait that long before you get a result. It should be at peak color no longer than 5 minutes.