Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Diluents and reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
10 Calculation and expression of results
11 Critical factors affecting results
12 Precision
13 Test report
Annex A (informative) - Diagram of staining protocols
Annex B (informative) - Calculation example of the appropriate
sample dilution
Annex C (informative) - Collaborative trial
Bibliography