Introduction
1 Scope
2 Normative references
3 Methods of analysis
3.1 General
3.2 Method A
3.2.1 Principle
3.2.2 Reagents
3.2.3 Apparatus
3.2.4 Sampling
3.2.5 Test procedure
3.2.6 Determination
3.2.7 Tests results
3.2.8 Test report
3.3 Method B
3.3.1 Principle
3.3.2 Reagents
3.3.3 Apparatus
3.3.4 Procedure
3.3.5 Determination
3.3.6 Test report