1. Scope
2. Normative references
3. Definitions
4. Test apparatus
5. Test method and procedure
5.1 General principle
5.2 Samples and conditioning
5.3 Test pieces
5.4 Procedure
5.5 Determination of the ph value and conductivity
6. Expression of the results
6.1 Mean value
6.2 Weighted values
Annex A: Performance requirements (Informative)