KS D ISO 7530 specifies cobalt and nickel with a mass fraction of less than 4% in nickel alloys.
KS D ISO 7530-1:2012 history
2022KS D ISO 7530-1-2022 Nickel alloys — Flame atomic absorption spectrometric analysis — Part 1: Determination of cobalt, chromium, copper, iron and manganese
0000 KS D ISO 7530-1-2012(2017)
2012KS D ISO 7530-1:2012 Nickel alloys-Flame atomic absorption spectrometric analysis-Part 1:General requirements and sample dissolution