NS EN 237 : 2ED 2004
Current
The latest, up-to-date edition.
LIQUID PETROLEUM PRODUCTS - PETROL - DETERMINATION OF LOW LEAD CONCENTRATIONS BY ATOMIC ABSORPTION SPECTROMETRY
12-01-2013
Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents and materials
5 Apparatus
6 Sampling
7 Procedure
7.1 General preparation
7.2 Preparation of calibration solutions (0,25 mg/l,
0,50 mg/l, 0,75 mg/l, and 1,0 mg/l of lead)
7.3 Preparation of the test solution
7.4 Preparation of instrument
7.5 Determination
8 Calculation
9 Expression of results
10 Precision
10.1 General background
10.2 Repeatability, r
10.3 Reproducibility, R
11 Test report
Annex A (informative) Alternative procedure
Bibliography
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