BS ISO 7530-1:2015 pdf free.Nickel alloys一Flame atomic absorption spectrometric analysis Part 1: Determination of cobalt, chromium, copper, iron and manganese. This part of Iso 7530 describes flame atomic absorption spectrometric methods for the determination of cobalt, chromium, copper, iron, and manganese in nickel alloys which can be dissolved in the nitric- hydrochloric acids mixture specified. For each element, the method is applicable to the content range between 0,01 % and 4 %. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 385, Laboratory glassware — Burettes ISO 648, Laboratory glass ware — Single-volume pipettes ISO 1042, Laboratory glassware — One-mark volumetric flasks 3 Principle Dissolution of a test portion in a nitric—hydrochloric acids mixture, evaporation of acids excess, and dissolution of the salts. Addition of an ionization suppressant if necessary and dilution of the solution to a known volume. Nebulization of the test solution after suitable dilution, if necessary, into an air/acetylene or a nitrous oxide/acetylene flame of an atomic absorption spectrometer. Measurement…