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made of nickel steels
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requirements and test methods for electromagnetic compatibility of circuit-breaker auxiliaries are contained in annexes to this standard
Testing laboratories for general test methods for system chimneys
Water quality. Biochemical and physiological measurements on fish - Determination of vitellogenin subscription-only made of nickel steels1 Scope This part of ISO 23893 specifies a method for measuring vitellogenin (Vtg) concentrations in a fish plasma sample employing an enzyme linked immunosorbent assay (ELISA) method. It applies to fish that are sampled in the environment (fresh, estuarine or salt water) and to fish exposed to substances or effluents in a laboratory. The method is quantitative when using Vtg antibodies and a Vtg standard well characterized with the species of choice.