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Determination of the specific surface area of powders -- Recommended air permeability methods
This Part of this British Standard describes recommended methods for determining the permeability surface area of powders by measuring the resistance offered to the flow of air through a compacted bed of the powder.
The methods are applicable to powders with permeability volume specific surfaces in the range 2 × 104 m2/m3 to 5 × 107 m2/m3.
Four specific methods are described in appendices B to E.
Use of the permeability methods is precluded when:
NOTE. The titles of the publications referred to in this standard are listed on the inside back cover.
Describes four commonly used methods for determining the permeability surface area of powders.
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