Introduction to Tablet Hardness Testers and Testing
The term tablet hardness is commonly used in the pharmaceutical and nutraceutical industry. However, Tablet hardness is somewhat misleading in that hardness is more accurately defined as the ability of a material to resist the penetration of a probe. Found in USP Chapter <1217> “Tablet Breaking Force” is the preferred term now used in the industry.
The measurement of tablet breaking force quantifies the amount of force required to make the sample mechanically fail. The tablets are generally placed between two parallel platens, one of which moves and applies sufficient force to cause fracture. The results of these measurements provide easy to obtain
Early devices used to measure tablet breaking force were hand operated usually by compressing a spring against the sample being tested. This resulted in variations of reported results which were influenced by human factors in the operation of the device. Later instruments were designed with motors and electronic controls which eliminated the effects of variable human influences.
The measurement of tablet breaking force is a key factor in laboratory and in-process quality control.
Burns Automation supplies bench-top and automatic equipment which complies with the guidelines of USP Chapter <1217> Tablet Breaking Force.