Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principe
5 Reagents
6 Appartus
7 Sampling
8 Preparation of the test sample
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) - Results on interlaboratory trials
Annex B (normative) - Checking of the titre of the
prepared internal standard solution
Annex C (normative) - Preparation and test of purified
sulfatase solution and checking of the desulphation
step on ion-exchange columns
Annex D (Informative) - Elution in the isocratic mode
Bibliography