The methods for chemical analysis of zinc and zinc alloys—The determination of lead,cadmium,iron copper,tin,aluminium,arsenic,stibium,magnesium lanthanum and cerium contents—The ind
1 Scope
This part specifies the methods for determining the contents of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium, lanthanum and cerium in zinc and zinc alloy.
This part is applicable to the determination of the contents of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium, lanthanum and cerium in zinc and zinc alloy.
The content ranges of determination are listed in Table 1.
Table 1
Element Pb Cd Fe Cu Sn Al As Sb La Ce Mg
Content / % 0.000 5~2.0 0.000 5 ~0.50 0.0005 ~0.30 0.000 2 ~6.00 0.0005~0.03 0.0005~12.0 0.001~0.02 0.002~0.5 0.005 ~0.5 0.005~0.5 0.005 ~0.5
2 Methods and Principles
Dissolve the test portion with dilute nitric acid, and use the inductively coupled plasma emission spectrometer in such nitric acid medium to determine the contents of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium, lanthanum and cerium in zinc and zinc alloy.
3 Reagents and Materials
Foreword II
1 Scope
2 Methods and Principles
3 Reagents and Materials
4 Apparatus
5 Sample
6 Analysis Procedures
7 Calculation of Analysis Results
8 Precision
9 Quality Assurance and Control
Appendix A (Informative) Working Conditions for Apparatus
