The “Paddle over Disk” is a modified version of Method 2 (Paddle Method) and is used for the determination of the drug release rate of transdermal patches. It is described in the United States Pharmacopoeia (USP) under Chapter <724> as Method 5 and in the European Pharmacopoeia (Ph.Eur.) under Chapter 2.9.4. Method 1 as ‘Disk Assembly Method’.
![PSAPP5S120-35-USP-apparatus-V-5-120-mesh-screen-35mm](/img/cache/psapp5s120-35-usp-apparatus-v-5-120-mesh-screen-35mm-250x167.jpg)
120 Mesh screen ø35mm (Set/25)
PSAPP5S120-35![PSAPP5S120-56-USP-apparatus-V-5-120-mesh-screen-56mm](/img/cache/psapp5s120-56-usp-apparatus-v-5-120-mesh-screen-56mm-250x167.jpg)
120 Mesh screen ø56mm (Set/25)
PSAPP5S120-56![PSAPP5S16-35-USP-apparatus-V-5-16-mesh-screen-35mm](/img/cache/psapp5s16-35-usp-apparatus-v-5-16-mesh-screen-35mm-250x167.jpg)
16 Mesh screen ø35mm (Set/25)
PSAPP5S16-35![PSAPP5S16-56-USP-apparatus-V-5-16-mesh-screen-56mm](/img/cache/psapp5s16-56-usp-apparatus-v-5-16-mesh-screen-56mm-250x167.jpg)
16 Mesh screen ø56mm (Set/25)
PSAPP5S16-56![PSAPP5S16-80-USP-apparatus-V-5-16-mesh-screen-80mm](/img/cache/psapp5s16-80-usp-apparatus-v-5-16-mesh-screen-80mm-250x167.jpg)
16 Mesh screen ø80mm (Set/25)
PSAPP5S16-80![PSAPP5S20-35-USP-Dissolution-Accessories-apparatus-V-5-20-mesh-paddle-over-disk-screen-35mm](/img/cache/psapp5s20-35-usp-dissolution-accessories-apparatus-v-5-20-mesh-paddle-over-disk-screen-35mm-250x167.jpg)
20 Mesh screen ø35mm (Set/25)
PSAPP5S20-35![PSAPP5S30-35-USP-Dissolution-Accessories-apparatus-V-5-30-mesh-paddle-over-disk-screen-35mm](/img/cache/psapp5s30-35-usp-dissolution-accessories-apparatus-v-5-30-mesh-paddle-over-disk-screen-35mm-250x167.jpg)
30 Mesh screen ø35mm (Set/25)
PSAPP5S30-35![PSAPP5S40-35-USP-apparatus-V-5-40-mesh-screen-35mm](/img/cache/psapp5s40-35-usp-apparatus-v-5-40-mesh-screen-35mm-250x167.jpg)
40 Mesh screen ø35mm (Set/25)
PSAPP5S40-35![PSAPP5S40-56-USP-apparatus-V-5-40-mesh-screen-56mm](/img/cache/psapp5s40-56-usp-apparatus-v-5-40-mesh-screen-56mm-250x167.jpg)
40 Mesh screen ø56mm (Set/25)
PSAPP5S40-56![PSAPPFIVE-HRCLIP-USP-apparatus-V-5-Replacement-clip-kynar](/img/cache/psappfive-hrclip-usp-apparatus-v-5-replacement-clip-kynar-250x167.jpg)
Replacement clip for PSAPPFIVE-HR
PSAPPFIVE-HRCLIP![PSAPPFIVE-HRSCR-USP-apparatus-V-5-17-mesh-PTFE-screen-for-PSAPPFIVE-HR](/img/cache/psappfive-hrscr-usp-apparatus-v-5-17-mesh-ptfe-screen-for-psappfive-hr-250x167.jpg)
17 mesh PP screen for PSAPPFIVE-HR
PSAPPFIVE-HRSCR![No photo availablekopie](/img/cache/no-photo-availablekopie-71-250x167.jpg)
Cuprophan membrane 128x345mm (Set/10)
PSCUP03003![PSMSHSCR200-C](/img/cache/psmshscr200-c-250x167.jpg)
Screen, 200 Mesh, OD 10", SS, pk/10
PSMSHSCR200-C2![No photo available](/img/cache/no-photo-available-15-250x167.jpg)
Paddle over disk (ø35mm) height spacers for Hanson Vision (pk/6)
PSSPAPP5V35-HRV![PSSPAPP5V56-HRV](/img/cache/psspapp5v56-hrv-250x167.jpg)