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These two volumes contain standard procedures for assessing water. Volume 11.01 is divided into four sections: Terminology, Reagents, and the Reporting of Results--defines terminology relating to water, wastewater, reagent water, and fluvial sediment. Sampling and Flow Measurement--examines open channel flow measurement, water sampling, and aqueous sampling. Also includes a practice on liquid filtration for comparing particle size in the use of alternative types of particle counters. General Properties of Water; and Inorganic Constituents--explores how to assess such properties as pH, turbidity, corrosivity, and specific gravity. Inorganic Constituents--demonstrates how to determine inorganic constituents. Volume 11.02 is divided into 6 sections, and features standards on general specifications, technical resources, and statistical methods. Organic Constituents--presents general analysis methods and tests for specific constituents and waterborne oils. Radioactivity--includes measuring radioactivity and specific radionuclides. Saline and Brackish Waters, Seawaters, and Brines--determines specific constituents such as barium, iodide and bromide, and chloride ions. Microbiological Examination--examines subjects such as coliphages and adenosine triphoshate (ATP) content. Water-Formed Deposits--covers chemical microscopy, preparation and preliminary testing of water-formed deposits, and trace element extraction. Water-Treatment Materials--features chemicals, particulate ion-exchange materials, membrane filters, and reverse osmosis devices.