A tablet needs to remain intact during shipping and handling. A friabilator is a rotating instrument that measures the friability of tablets.
The friabilator consists of a rotating plexiglas chamber with a curved baffle that allows tablets to undergo a controlled drop. A specified number of tablets are placed in the chamber which rotates at a constant speed for a specified time period.
Criteria for durability:
(1) resists breakage and crumbling
(2) resists abrasion, as measured by change in weight before and after testing
