ISO 20260 is a safety standard on determining mercury.
ISO 20260 specifies the methods for the determination of mercury in magnesium and magnesium alloys by inductively coupled plasma (ICP) atomic mass spectrometric analysis and by atomic absorption spectrometric analysis.
(ICP) the atomic mass spectrometric analysis method is applicable to magnesium and magnesium alloy of 0,000 01 % (mass fraction) or over up to and including 0,01 % (mass fraction) in mercury content and the atomic absorption spectrometric analysis method is applicable to magnesium and magnesium alloy of 0,000 02 % (mass fraction) or over up to and including 0,001 % (mass fraction) in mercury content.
ISO 20064 on determining mercury is relevant to:
Magnesium is the lightest of all the common metals and has been prepared for industry use as metal ingots and alloys since these have the best strength-to-weight ratio of any of the commonly used structural alloys. Chemical compositions of magnesium and its alloys are widely standardized from major to trace quantities.
Mercury has generally been a non-analyzing element to monitor because it seems to be volatilized on heating due to its low boiling point. ISO 20260 specifies the methods for the determination of trace levels of mercury in magnesium and magnesium alloys. The precision of this method is 5 % (RSD) or better. Its trueness lies within 24 %, considering that the analytical results of the certified reference materials (CRMs) of magnesium alloys have a coincidence within their uncertainties of the certified values, 11 % to 24 %.
Overall, ISO 20260 is useful as it provides guidance on determining mercury which can help you out in your business.
ISO 20260