Preparations in the nature of chemical, biochemical and immunochemical reagents for use in the surveying, testing and monitoring of fluids; chemical reagents for non-medical purposes and chemical products in the nature of chlorine strips to test water and chemically-treated nonmedical test strips, chlorine strips for use in the surveying, testing and monitoring of fluids; preparations in the nature of chemical, biochemical and immunochemical reagents for use in the surveying, testing and moni...