NS EN 15487 : 1ED 2007

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents and materials
5 Apparatus
6 Samples and sampling
7 Calibration
   7.1 Preparation of calibration solutions
   7.2 Colour development
   7.3 Spectrometric measurement
   7.4 Calibration regression line
8 Procedure
   8.1 Dry residue
   8.2 Test portion
   8.3 Colour development
   8.3 Spectrometric measurement
9 Calculation
10 Expression of results
11 Precision
   11.1 Repeatability
   11.2 Reproducibility
12 Test report
Bibliography

Describes a procedure for the determination of phosphorus content measured as orthophosphate, in ethanol from 0,15 mg/l to 1,50 mg/l by ammonium molybdate spectrometric method.