EN 13383-2:2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Methods for sampling
5 Determination of the particle size distribution of coarse gradings
6 Determination of the mass distribution of light and heavy gradings
7 Determination of the percentage of pieces of armourstone
   with a length-to-thickness ratio greater than 3
8 Determination of particle density and water absorption
9 Determination of resistance to freezing and thawing
10 Determination of signs of ?Sonnenbrand' and disintegration
   of steel slags
Annex A (informative) - Example of a sampling report
Annex B (informative) - Example of a particle size
        distribution of a coarse grading
Annex C (informative) - Example of a mass distribution
        (reference method)
Annex D (informative) - Example of a mass distribution
        (alternative method)
Annex E (informative) - Density of water
Annex F (informative) - Precision for determination of
        particle density and water absorption (see
        clause 8) - Repeatability r and reproducibility R
Annex G (informative) - Guidance on sampling for testing

This European Standard specifies sampling and test methods for natural, artificial and recycled aggregates for use as armourstone. This European Standard specifies the reference methods to be used for type testing and in case of dispute where an alternative method has been used. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the test method has been established.