Model CU-5 -Copper (Free) Test Kit, Color Disc, 0.1-5 mg/L, 100 Tests

Copper Free, Single Parameter Test Kit, Model: CU-5, Color-disc/Bicinchoninate. Copper may exist in natural waters and effluents as a soluble salt or as suspended solids. A small amount is essential for plants and  animals, and concentrations exceeding 0.1 mg/L are useful for controlling algae and plankton growth. Quantities ranging from 0.02 to 0.1 mg/L are toxic for some fish, so its used for treating fish disease requires careful monitoring. Our Long-path Cube Kit (P/N 2193800), sensitive to 0.05 mg/L free copper, is ideal for this use.