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chemical test kits comprising diagnostic reagents processing chemicals instructions and containers for scientific or research for testing and analysis of residential and industrial water systems and cooling systems to determine if the water conditions meet predetermined specifications; chemical test kits for testing the concentration of sulfites phosphonate organophosphate nitrite water hardness glutaraldehyde chlorine dioxide dissolved oxygen chlorine chelants copper chlorides bromine alkalinity acidity; and calcium test kits comprising diagnostic reagents processing chemicals instruction cards with photographic depictions of testing procedure in order to assist in users titration and containers with color coded caps on chemicals to match the information on the instruction card for use by persons without extensive knowledge training or education in the field of chemistry