HACH

[Class - 1]

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; NAMELY, ACID SOLUTIONS FOR ADDING TO A LIQUID SAMPLE CONTAINING FLUORIDE FOR USE IN THE CALIBRATION OF DISTILLATION APPARATUS; 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; STANDARDS USED FOR STANDARDIZING TURBIDITY INSTRUMENTS

[Class - 42]

SCIENTIFIC AND INDUSTRIAL RESEARCH CONCERNING APPARATUS AND 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