PTF 20E and PTF 20ER, are dual drum Tablet Friability Test instruments. Both are available as fixed or variable speed instruments and are manufactured in compliance to the USP <1216>, European EP <2.9.7> and other Pharmacopoeias. The PTF 20E/ER Instruments are manufactured with two drums, both Friability ("Roche") and (optionally) Abrasion drums are available.