1.1 ISO 7530 specifies flame atomic absorption methods for the determination of up to 4 % (m/m) of cobalt, chromium, copper, iron, manganese and aluminium, up to 2 % (m/m) of silicon and from 0,05 % (m/m) to 1 % (m/m) of vanadium in nickel alloys. Other elements may be added in subsequent parts of ISO 7530. Typical compositions of some nickel alloys are given in annex B. 1.2 This part of ISO 7530 specifies the general requirements for analysis by flame atomic absorption, preparation and dissolution of the test sample, method of calculation and the procedures used for the evaluation of the repeatability and reproducibility of the individual methods specified in the other parts of ISO 7530.The general requirements concerning the apparatus, sampling, dissolution of the test sample, atomic absorption measurements, calculations and test report are given in ISO 7530-1.