Historical
BS ISO 6344-3:2013
Coated abrasives. Grain size analysis. Determination of grain size distribution of microgrits P240 to P2500 (British Standard)
ISO 6344:2013 specifies a method for determining or testing the grain size distribution of electro-fused aluminium oxide and silicon carbide microgrits P240 to P2500 for coated abrasives as defined in ISO 6344-1.
It applies both to those grits used in the manufacture of coated abrasive products and to those grits taken from products for testing purposes.
British Standards Institution [bsi]