This standard specifies the dry sieving method for the determination of the particle size composition of metal powders. This standard applies to dry, non-lubricating metal powders. This standard does not apply to obviously anisometric metal powders (such as flake powders) and metal powders whose particle size is all or most of them smaller than 45 μm.
GB/T 1480-1995 history
2012GB/T 1480-2012 Metallic powders.Determination of particle size by dry sieving
1995GB/T 1480-1995 Determination of particle size for metallic powders--Dry sieving