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The Cleanroom Particle Counter LAP 340 is an device for measuring the number and size of particles in air streams and gaseous media according to ISO 21501-4. It is built by Klotz GmbH on behalf of Topas. The measuring system is suitable for stationary as well as mobile use. The particle analyzer is especially suitable for clean room applications which enables it to cover a wide particle size range from 0.3 µm to 10 µm and a maximum measurable particle number concentration of 980,000 particles/ft3 (35 particles/cm³), in the standard version. That opens a wide range of measuring tasks. These include monitoring and checking of clean rooms, clean benches, filter facilities in operation rooms, filling facilities in the pharmaceutical industry and separation efficiency tests of filters.
Topas offers a complete set for validation of clean rooms and safety work benches, consisting of: