Foreword
1 Scope
2 Normative references
3 Principle
4 Chemicals
5 Apparatus
6 Sampling
7 Preparation of the calibration solutions and the
   blank solution
   7.1 General
   7.2 Blank solution
   7.3 Calibration solution with a nominal element
       content of 0,5 mg/kg
   7.4 Calibration solution with a nominal element
       content of 1 mg/kg
   7.5 Calibration solution with a nominal element
       content of 5 mg/kg
   7.6 Calibration solution with a nominal element
       content of 10 mg/kg
8 Calibration
   8.1 General
   8.2 Calibration
   8.3 Check of calibration
9 Sample analysis
   9.1 Sample preparation
   9.2 Measurement
10 Calculation
11 Results
12 Precision
   12.1 Repeatability
   12.2 Reproducibility
13 Test report