Laboratory safety procedures; Common glassware and equipment; Glassware marking, identification, and cleaning; Making of solutions; Dilution techniques; Data and records; Preparation of calibration curves; Collection and handling of samples; Quality assurance; Format used for measurements; pH measurements; Color measurement; Turbidity; Temperature measurment; Specific conductivity measurement; Alkalinity measurement; Hardness measurement; Calcium and magnesium measurement; Total solids measurement; Calcium carbonate stability measurement; Lime purity measurement; Corrosion inhibition measurement; Jar test measurement; Chloride measurement; Sulfate measurement; Nitrate measurement; Fluoride measurement; Dissolved oxygen measurement; Biochemical oxygen demand measurement; DODS toxicity measurement; Glucose/glutamic acid measurement; Relative stability measurement; Chemical oxygen demand measurement; Oil and grease measurement; Volatile acid to alkalinity ration measurement; Phosphate measurement; Ammonia and organic nitrogen measurement; Methylene blue surface active agents measurement; Iron measurement; Manganese measurement. Jackson's modified sulfur dioxide measurement; Residual sulfite as sulfur dioxide measurement.