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Description of BS 4359-2:1982 1982This 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:
Describes four commonly used methods for determining the permeability surface area of powders.
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