IS 12473 Pt.2-1988 Chemical analysis of cemented carbide by flame atomic absorption spectrometry Part 2 Determination of calcium, potassium, magnesium and sodium contents from 0.001% to 0.02% (m/m)
1.1 This standard ( Part 2 ) specifies the method to be used for the determination of calcium, potassium, magnesium and sodium contents in hardmetals within the range 0.001 to 0.02 percent ( m/m ) by flame atomic absorption spectrometry.
1.2 General requirements concerning the field of application, principle, interfering elements, appa-ratus, sampling and test report are given in Part 1 of this standard.
Note — In low concentrations, the determination of these elements is very critical. Every care should be taken to avoid contamination from atmosphere and reagents.
IS 12473 Pt.2-1988 history
1989IS 12473 Pt.2-1988 Chemical analysis of cemented carbide by flame atomic absorption spectrometry Part 2 Determination of calcium, potassium, magnesium and sodium contents from 0.001% to 0.02% (m/m)