Science / Chemistry / Primary Standard: A stable, high-purity material used in titrations and other chemical analyses to prepare solutions of precisely known concentration, or to determine the concentrations of substances which react with the primary standard material. For example, nacl is a primary standard that can be used to determine the concentration of agno3 in a solution by titration: nacl(aq) + agno3(aq) = agcl(s) + nano3(aq).
Primary Adverb Synonyms: first, prime, principal, chief, main, leading, pre-eminent, cardinal, fundamental, basic, essential, predominant, elementary, elemental, underlying
Primary Adjective Synonyms: firsthand, direct, immediate
Standard Noun Synonyms: criterion, measure, benchmark, model, pattern, archetype, touchstone, yardstick, gauge, guide, guideline, paradigm, paragon, exemplar, example, sample, type, ideal, beau id‚al, rule, canon, law, requirement, precept, principle
Business / Real Estate / Air Quality Standards: The level of selected pollutants set by law that may not be exceeded in outside air. Used to determine the amount of pollutants that may be emitted by industry MORE
Business / Real Estate / Standard Coverage Policy: A standard coverage policy normally insures the title as it is known from the public records. In addition, the standard policy insures against such hidden defects as forged documents, conveyances by i MORE