Serving Scientists Since 1994

USP5 Transdermal Patch Holder, 35mm, 40 Mesh

Part Number Pack Size Price Qty

USP5 Transdermal Patch Holder, 35mm 40 Mesh. Outer diameter is 41.2mm and meets the diagram in the USP

OEM Part# 12-4200

USP5 Transdermal Patch Holder 40 Mesh

Transdermal Patch Holder with 35mm (1.38") opening and 40 Mesh screen.

Use in Paddle Over Disk Applications


Transdermal or patch testing is carried out using USP method 5 (paddle over disc) or USP method 6, the rotating cylinder.

With paddle over disc, the transdermal patch is placed between a glass disc and an inert PTFE mesh. This is placed at the bottom of the vessel, with the mesh facing upwards, under a rotating paddle.

Unlike dissolution testing, transdermal testing is carried out at 32°C to reflect the lower temperature of the skin. Other variables such as the height setting and sampling requirements are the same as dissolution testing. APPFIVE-V35 has an outer diameter of 41.2mm and meets the diagram in the USP.

Pack Size Each
Transdermal USP5 Disc

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