ASTM D6393 Standard Test Method for Bulk Solids Characterization by Carr Indices
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- Картотека зарубежных и международных стандартов
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- Картотека зарубежных и международных стандартов
ASTM International
Standard Test Method for Bulk Solids Characterization by Carr Indices
N D6393
Annotation
This test method covers an apparatus and procedures for measuring properties of bulk solids, henceforth referred to as Carr Indices.2
This test method is suitable for free flowing and moderately cohesive powders and granular materials up to 2.0 mm in size. Materials must be able to pour through a 6.0 to 8.0-mm diameter funnel outlet when in an aerated state.
This method consists of eight measurements and two calculations for Carr Indices as follows. Each measurement, or calculation, or combination of them, can be used to characterize the properties of bulk solids.
Measurement of Carr Angle of Repose
Measurement of Carr Angle of Fall
Calculation of Carr Angle of Difference
Measurement of Carr Loose Bulk Density
Measurement of Carr Packed Bulk Density
Calculation of Carr Compressibility
Measurement of Carr Cohesion
Measurement of Carr Uniformity
Measurement of Carr Angle of Spatula
Measurement of Carr Dispersibility
All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.
The procedures used to specify how data are collected/ recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user's objectives: and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design.
