EN 933-9:2009+A1:2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Preparation of test portions
8 Procedure
9 Calculation and expression of results
10 Test report
Annex A (normative) - Procedure for the determination of
        the methylene blue value (MB[F]) of the 0/0,125
        mm fraction
Annex B (informative) - Test of conformity in relation to
        a specified MB value
Annex C (normative) - Preparation of 10 g/l methylene
        blue solution
Annex D (normative) - Procedure for the determination
        of the methylene blue value of kaolinite (MB[K])
Annex E (informative) - Example of a test data sheet

This standard describes the reference method used for type testing and in cases of dispute for the determination of the methylene blue value of the 0/2 mm fraction in fine aggregates or all-in aggregates (MB). It also describes the reference method for the determination of the methylene blue value of the 0/0,125 mm fraction (MBF) in Annex A. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the suitable reference method has been established.