This European Standard specifies a method for the determination of shell content of coarse aggregates. It applies to gravel or mixed aggregate containing gravel. The test method specified in this part of this European Standard is applicable to particle size fractions di/Di where Di is > or = 63 mm and di > or = 4 mm. NOTE: For aggregate sizes with D > than 63 mm and/or d > 4 mm the test may be carried out on particle size fractions di/Di where Di is > or = 63 mm and di is > or = 4 mm.
DS/EN 933-7:1998 history
1998DS/EN 933-7:1998 Tests for geometrical properties of aggregates - Part 7: Determination of shell content - Percentage of shells in coarse aggregates