International Organization for Standardization (ISO)
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ISO 10076:1991
Scope
Specifies methods which are suitable only where Stokes' equation is applicable. They are suitable for all metallic powders containing particles in the size range 1 鎚 to 100 鎚. Does not apply to powders: containing particles whose shape is far from equiaxial; which are mixtures; containing lubricant or binder; which cannot be dispersed in a liquid.
ISO 10076:1991 history
1991ISO 10076:1991 Metallic powder; determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement