301-5 About tapped density measurement in US pharmacopoeia USP 616

The name of USP 616 is: the bulk density and tapped density of powder. This standard describes and normalizes the methods of measuring bulk powder’s bulk density and tapped density.

The first part is Bulk Density. There are three methods in this part: method I, method II, method III.

Tips: HMKTest is the world leading manufacturer of tapped density and bulk density.

• Method I: measure in a cylinder.
• Method II：measure in a volumeter. Here HMKTest AS-200 Scott Volumeter should be used.
• Method III：measure in a container

The second part is Tapped Density. There are also three methods in this part: method I, method II, method III.

• Method I： Tapped density meter measurement. Here HMKTest LABULK 335 Tapped Density Meter should be used.
• Method II：Tapped density meter measurement. Here HMKTest AS-100 Tapped Density Meter can be used.
• Method III: Tapped density meter measurement.

HMKTest bulk density meter and tapped density meter completely meet the requirement of US pharmacopoeia 616. It is widely used in the international.

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