USP 5 Paddle Over Disc

Hanson Style Transdermal Sandwich (USP Apparatus 5 “Paddle Over Disk”) The Transdermal Sandwich is a convenient disk assembly recommended by the FDA for testing patch dosage forms in a standard dissolution test station for USP Apparatus 5 “Paddle Over Disk.” The Transdermal Sandwich consists of a glass watchglass (on which the patch is placed, delivery side up), a 17-mesh PVDF screen (to hold the patch), and PVDF clips to hold the disk assembly together. For use with standard USP 1 liter vessel and paddle. Accommodates patches up to 90 mm diameter. Used on all Hanson dissolution testers or any other standard 1000 ml dissolution vessel