Aerosol Generator ATM 240/L

The aerosol generator ATM 240/L is used to generate a highly concentrated aerosol out of a suspension for testing air filters using polystyrene (PSL) particles.

Standards

In sensitive areas such as semiconductor and aerospace industry the testing of high efficiency HEPA filters is often not carried out with the commonly used oily aerosol substances (DEHS, PAO, etc.).

Even the smallest amounts of these substances can be stored in the filter and outgas in the application and can lead to product damages. The standard DIN EN 1822-4 describes the filter test with solid particles.

Benefits

• generation of high concentration PSL test aerosols with low dispersion volume compared to other aerosol generators
• integrated aerosol drying to minimise the need for additional technical equipment
• possible start/stop operation for individual tests

Applications

• testing PTFE membranes with inert solid aerosol
• testing of special filters for the aerospace and semiconductor industries
• leak tests on HEPA filters according to ISO 29464-4 (formerly EN 1822-4) Annex D
• generation of test aerosols consisting of monodisperse polystyrene latex spheres

Accessories

• EAN 581 for neutralisation or defined charging of the generated aerosols
• UDS 751 for ultrasonic dispersion of the PSL suspension