Repair or maintenance of water analysis apparatus; repair or maintenance of water analysis apparatus for industrial purposes.

Chemicals and chemical compositions for laboratory and field analysis of water quality; chemicals, chemical compositions, and reagents for use in analyses of fluids; chemical reagents, namely, reagent strip chemical test paper for determining chemical constituents and parameters of pool and spa water; chemical reagents for non-medical purposes, namely, acid solutions for adding to a liquid sample containing fluoride for use in the calibration of distillation units for process engineering in the chemical industry; test kits comprised of chemical reagents for non-medical purposes for use for testing and analyzing water and other aqueous solutions; ampules of premixed, precalibrated, standard reagent chemical solutions for analytical laboratory use; chemical reagents in vacuum vials for use in chemical analysis of fluids, such as water or solvents; reagent strip chemical test paper for testing of various analyses in, and chemical parameters of, soils; chemical reagents for use in analytical determination of water hardness; chemical reagents for use in non-medical analytical determination of amount of aluminum, barium, boron, cadmium, chromates, cyanide, hydrazine, iron, lead, lignin, molybdenum, nitrates, nitrites, phosphates, sulfur, tannin, and zinc present in a liquid sample; reagent strip chemical test paper for testing of coolant; chemical analysis test kits for testing of water quality and sterilants/disinfectants for use in renal dialysis; environmental quality control fluid samples for calculating standards used for standardizing turbidity instruments used in testing and verifying the quality of water.

Apparatus for laboratory and commercial use intended primarily for testing and analyzing the quality of water and other aqueous solutions, namely, automatic liquid analyzers, turbidimeters, colorimeters, titrators, and labware in the nature of balances for weighing liquids, glassware for testing liquids in a laboratory, and electrodes; apparatus for laboratory and commercial use intended primarily for testing and analyzing the quality of water and other aqueous solutions, namely, automatic titrators and samplers for collecting and analyzing samples of water and other aqueous solutions; sensors and probes for the measurement of PH, oxidation-reduction potential, conductivity, turbidity, dissolved oxygen, ozone, residual chlorine, liquid level, fluid flow, fluid color, and associated analytical parameters, the analyzers used therewith, and electrical controllers for controlling the above-mentioned parameters, all used in connection with drinking water and waste water treatment and the control of industrial liquid processes; liquid flow measuring instruments, namely, ultrasonic and electronic meters for measuring liquid flow; lift station flowmeter for measuring liquid flow; electrical flowmeter for measuring liquid fluid flow; laboratory apparatuses, namely, flasks, electrodes, and probes; pipettes for laboratory use in collecting and dispensing a liquid sample; measuring cup featuring a color scale on one side wall; measuring and analytical apparatus, namely, detectors, monitors and instruments for field measurement of substances in fluids, measuring instruments for dissolved gas, oxygen meters, nitrate meters, ammonia meters, phosphate meters, meters for plant-nutritive salts, sensors and regulators for chemical and biological process control, transmitters of electric and/or electronic signals; measuring and scientific apparatus, namely, meters for measuring temperature, particle counters, ion measuring and generating instrumentation, flow rate indicators and meters; indicating and measuring devices for determining the chemical composition of liquids, namely, liquid analyzers; scientific instruments, namely, pH, pH/mV, and pH/ISE meters and electrodes used therewith to determine the presence of ions in liquid chemical analysis; scientific apparatus for use with membrane filtration, namely, water filter controllers and computer software for detecting and measuring water quality; scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; scientific instruments for analysis, namely, photometric monitoring, detection and recording apparatus, namely photometers, luminometers, and parts and fittings thereof; digital meters that measure the chemical constituents and parameters of pool and spa water by reading reagent strip chemical test paper; hand-held analytical instruments, namely, a hand-held liquid analyzer for measuring pH, temperature, conductivity, dissolved oxygen and/or the presence of specific ions for scientific research use; water analyzers and gas detectors; turbidity measurement instrumentation systems consisting of turbidity analyzers and sensors for indicating and transmitting turbidity readings in liquid media; electrical apparatus comprised of sensors and power supplies for testing water quality; electromechanical instrument that tests for the presence of free or total chlorine, chlorite, sulfite, or chlorine dioxide and quantifies the amount; electrical instruments in the nature of liquid analyzers used primarily for laboratory and field measurement, recordation, monitorization and data storage of water quality parameters; electronic instrumentation, namely liquid analyzers for monitoring basic water quality parameters, namely, temperature, pH content, conductivity, salinity, dissolved oxygen, depth, water level, oxidation reduction potential (ORP), turbidity, nutrients, photsynthetically active radiation (PAR), metals and organic materials; electronic warning systems comprised of event detection instrumentation, namely automatic liquid analyzers, turbidimeters, probes for analyzing liquids, thermometers and pressure sensors, diagnostic software for analyzing water and other aqueous solutions, and alarm systems; test kits comprised of portable analyzers, monitors, probes, and samplers for sampling, testing, analyzing and monitoring the safety of water and other aqueous solutions; test kits comprising filter paper, spoon, bottle, color viewing tube, chemical reagents, flask, and instruction manuals, for use in analytical determination of amount of nitrogen present in soil; test kits comprising chemical reagents, graduated cylinders and eyedroppers for use in analytical determination of amount of lead present in water; biochemical oxidation measuring apparatus for testing biochemical oxygen demand, namely laboratory glassware in the nature of incubation bottles, and temperature controller for biochemical oxygen demand incubation; environmental monitoring and recording units for use in water quality applications; on-line connected instrument consisting of computer hardware for transmission and recording of dissolved oxygen, pH, specific conductance, redox, and pressure, for use in pollution studies of industrial wastewaters; computers, computer peripherals and computer programs in the field of computer-aided process management and scientific instruments used for monitoring, analyzing and controlling contamination in ultrapure water and pure chemical applications in the semiconductor, nuclear power and biotechnology industries, computer assisted process management systems and instruments comprising, microprocessor based process analytical instruments used for monitoring, analyzing and controlling contamination in clean room, ultrapure water and pure chemical applications in the semiconductor, nuclear power and biotechnology industries; computer software for measuring liquid flow; computer software for use in connection with fluid flowmeters; computer software for receiving data used to create reports and to manage operations in the field of water information management; computer software for use in programming, data collection, data storage, data analysis and report generation of fluid flow meters and wastewater sampler products; water analysis software using a proprietary algorithm to identify contamination occurrences and classify contaminants; computer software used for analysis of pool and spa water; computer software for use in programming, data collection, data storage, data analysis and report generation of open channel flow meters and wastewater sampler products; computer software for maintenance management, namely, scheduling, and tracking preventative maintenance, tasks and emergency repairs in industrial plants.

Scientific and industrial research concerning apparatus for laboratory and commercial use intended primarily for testing and analyzing the quality of water and other aqueous solutions, namely, automatic liquid analyzers, turbidimeters, colorimeters, titrators, and labware in the nature of balances for weighing liquids, glassware for testing liquids in a laboratory, and electrodes, automatic titrators and samplers for collecting and analyzing samples of water and other aqueous solutions, flasks, electrodes, and probes, detectors, monitors and instruments for field measurement of substances in fluids, meters for measuring temperature, particle counters, ion measuring and generating instrumentation, flow rate indicators and meters, water filter controllers and computer software for detecting and measuring water quality, photometers, luminometers, and parts and fittings thereof, laboratory glassware in the nature of incubation bottles, and temperature controller for biochemical oxygen demand incubation; scientific and industrial research concerning chemicals for laboratory and commercial use intended primarily for testing and analyzing the quality of water and other aqueous solutions; providing in-store chemical analysis of the chemical constituents in and parameters of pool and spa water.