CEN Standards for Test Methods

Part 3 Procedure and terminology for simplified petrographic description Part 4 Methods for description and petrography - Quantitative and qualitative procedures 

Part 1 Determination of particle size — Sieving method 

Part 2 Determination of particle size — Test sieves, nominal size of apertures Part 3 Determination of particle shape of aggregates — Flakiness index Part 4 Determination of particle shape of aggregates — Shape index 

Part 5 Assessment of surface characteristics - Percentage of crushed or broken surfaces in coarse aggregates 

Part 6 Determination of shape/texture — Flow coefficient for coarse aggregates 

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