This European Standard applies to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low penetration air filters (ULPA) used in the field of ventilation and air conditioning and for technical processes, e. g. for applications in clean room technology or pharmaceutical industry. It establishes a procedure for the determination of the efficiency on the basis of a particle counting method using a liquid test aerosol, and allows a standardized classification of these filters in terms of their efficiency. Part 5 of the standard deals with measuring the efficiency of filter elements, specifying the conditions and procedures for carrying out tests, describing a specimen test apparatus and its components, and including the method for evaluating test results.
Số hiệu tiêu chuẩn
FprEN 1822-5
Tên tiêu chuẩn
High efficiency air filters (EPA, HEPA and ULPA) - Part 5: Determining the efficiency of filter elements
Ngày phát hành
2009-07-00
Từ khóa
Aerosols * Air filters * Air-conditioning systems * Clean rooms * Clean-room technology * Concentration of particles * Counting * Definitions * Drainage layers * Filter elements * Filtering materials * Filters * High capacity * High-efficiency submicron particulate airfilters * Materials testing * Measurement * Measuring techniques * Mechanical engineering * Methods * Particle filters * Particles * Particulate matter measurement * Process ventilation * Separation efficiency * Separators * Statistics * Test aerosols * Testing * Procedures * Processes
FprEN 1822-5
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