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The Pharma Test PTF 20ER Double Drum Friability Tester are dial drum tablet friability testing instrument that is fully compliant to USP. It features a visible LED display, stainless steel housing, double drum instrument, fixed speed and more. 

Specifications: 

• Display: LED Display
  
• Data Entry: Functional Keys
  
• Setting number of revolutions: 1 to 9999
  
• Setting rotation timer: 1 to 9999 sec.
  
• Drum rotation speed: Fixed to 25 rpm
  
• PTF 10E/20E: Accuracy ±1 rpm
  
• Bench Space Requirement: 13.78" W x 15.75" D (35 x 40 cm)