AMF AFM - Instructions for use | Page 6

AFM® product specifications
Specification grade 0 grade 1 grade 2 grade 3
Particle size 250 - 500 microns 0.4 to 1.0mm 1.0 to 2.0mm 2.0 to 4.0mm
Undersized <5% <5% <5% <5%
Oversized <5% <5% <5% <5%
320 microns 0.46mm 1.3mm 2.6mm
Hardness >7 mohs >7 mohs >7 mohs >7mhos
Sphericity >0.7 >0.7 >0.7 >0.7
roundness >0.6 >0.6 >0.6 >0.6
1.5 to 1.7 1.5 to 1.7 1.5 to 1.7 1.5 to 1.7
2 – 2.4 2 - 2.4 2 - 2.4 2 - 2.4
Purity >99.95% >99.95% >99.95% >99.95%
Colour >95% green >95% green >95% green >95% green
2.4kg/l 2.4 kg/l 2.4 kg/l 2.4 kg/l
Embodied energy <72kw/tonne <65kw/tonne <50 kw/tonne <50 kw/tonne
Bulk bed density 1.28 kg/l 1.25 kg/l 1.23 kg/l 1.22 kg/l
<3% <3% <3% <3%
Effective size
uniformity coefficient
aspect ratio
specific gravity (grain)
Attrition, 50% bed expansion
100 hours backwash in water
Dryden Aqua Ltd
Butlerfield-Bonnyrigg,
Edinburgh EH19 3JQ Scotland
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