Liquid Nebulizer / Aerosol Generators
ATM 240/L
EN 1822-4

ATM 240/L - Atomizer Aerosol Generator for Polystyrene (PSL) Particles

INNOVATION
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. 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.). more

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. 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.

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  • Very high particle production rate (up to 1,5 1011 per minute)
  • High long-term stability of aerosol generation (VDI guideline 3491, part 2)
  • Monodisperse particle size distribution with a low number of agglomerates
  • Excellent scalability of particle production rate
  • Leak test up to filter class U16 (filter format 610mm x 610mm, volume flow 600 m³ / h) within reasonable time

 

  • Filter testing in sensitive areas such as the semiconductor and aerospace industries
  • Filter test with non-outgassing aerosol substance and monodisperse aerosol
  • Leak test up to filters of higher filter classes
  • Production test during filter production
  • Acceptance tests at the installation site of the filters