IS 12473 Pt.2-1988

标准号：IS 12473 Pt.2-1988
发布日期：1989/3/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：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.