CT 242 - Materiali, componenti e sistemi per la depurazione e la filtrazione di aria, gas e fumi

00195009

EN 779:2002

Particulate air filters for general ventilation - Determination of the filtration performance

This European Standard contains requirements to be met by particulate air filters. It describes testing methods and the test rig for measuring filter performance. This European Standard applies to air filters having an initial efficiency of less than 98 % with respect to 0,4 µm particles. Filters should be tested at an air flow rate between 0,24 m3/s (850 m3/h) and 1,5 m3/s (5400 m3/h).

Non prevista

00195010

EN 15805:2009

Particulate air filters for general ventilation - Standardised dimensions

Standardisation of the header frame dimensions of air filters for general ventilation to be used in air handling units, air intake system filters for rotary machinery and other applications. This includes pocket filters, rigid (V type) filters and filters to which header frame dimensions are applicable.

Non prevista

00195011

EN 1822-1:2009

High efficiency air filters (EPA, HEPA and ULPA) — Part 1: Classification, performance testing, marking

This European Standard applies to high efficiency particulate and ultra low penetration air filters (EPA,HEPA and ULPA) used in the field of ventilation and air conditioning and for technical processes, e.g. for clean room technology or applications in the nuclear and pharmaceutical industry.
It establishes a procedure for the determination of the efficiency on the basis of a particle counting method using a liquid (or alternatively a solid) test aerosol, and allows a standardized classification of these filters in terms of their efficiency, both local and overall efficiency.

Non prevista

00195012

EN 1822-2:2009

High efficiency air filters (EPA, HEPA and ULPA) — Part 2: Aerosol production, measuring equipment, particle counting statistics

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 (or alternatively a solid) test aerosol, and allows a standardized classification of these filters in terms of their efficiency, both local and integral efficiency. This European Standard describes the measuring instruments and aerosol generators used in the course of this testing. With regard to particle counting it specifies the statistical basis for the evaluation of counts with only small numbers of counted events.

Non prevista

00195013

EN 1822-3:2009

High efficiency air filters (EPA, HEPA and ULPA) — Part 3: Testing flat sheet filter media

This European Standard applies to high efficiency particulate air filters and ultra low penetration air filters (EPA, HEPA and 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. This European Standard applies to testing sheet filter media used in high efficiency air filters. The procedure includes methods, test assemblies and conditions for carrying out the test, and the basis for calculating results.

Non prevista

00195014

EN 1822-4:2009

High efficiency air filters (EPA, HEPA and ULPA) — Part 4: Determining leakage of filter elements (scan method)

This European Standard applies to efficient air filters (EPA), high efficiency air filters (HEPA) and ultra low penetration air filters (ULPA-filters) 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 an artificial test aerosol, and allows a standardized classification of these filters in terms of their efficiency. Part 4 of this standard applies to the leak testing of filter elements.

Non prevista

00195015

EN 1822-5:2009

High efficiency air filters (EPA, HEPA and ULPA) — Part 5: Determining the efficiency of filter element

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.

Non prevista

00195008

EN 14799:2007

Air filters for general air cleaning - Terminology

This European Standard is applicable to air filters used for general ventilation.
This European Standard establishes a terminology for the air filtration industry and comprises terms, definitions, symbols and units.
It does not apply to filters for road vehicles and internal combustion engines. Dust separators for the purpose of air pollution control are also excluded.

Non prevista

00195019

UNI EN ISO 29462:2013

Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow (ISO 29462:2013)

This document describes a procedure of measuring the performance of general ventilation air cleaning devices in their end use installed configuration. The performance measurements include removal efficiency by particle size and the resistance to airflow. The procedures for test include the definition and reporting of the system airflow. The procedure describes a method of counting ambient air particles of 0.3um to 5.0um upstream and downstream of the in-place air cleaner(s) in a functioning air handling system. The procedure describes the reduction of particle counter data to calculate removal efficiency by particle size. Since filter installations vary dramatically in design and shape a protocol for evaluating the suitability of a site for filter evaluation and for system evaluation is included. When the evaluated site conditions meet the minimum criteria established for system evaluation, the performance evaluation of the system can also be performed according to this procedure. The procedure for testing also describes performance specifications for the testing equipment and defines procedures of calculating and reporting the results. This procedure is not intended for measuring performance of portable or movable room air cleaners. This standard is not intended for evaluation of HEPA or ULPA filter installation(s).

Non prevista

00195020

UNI EN ISO 29461-1:2013

Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)

This standard covers methods on how to test air filters and air filter intakes systems for rotary machinery like gas turbines, compressors and for stationary internal combustion engines. The envelope for testing is in the range of 0.25 m3/s (900 m3/h) up to 1.67 m3/s (6000 m3/h) Parameters to be evaluated include fractional particle removal efficiency (0.3-1.2 um for fine filters and 1.0-5.5 um for coarse filters), airflow resistance (energy consumption), loading characteristics. This international standard applies to air filters having an initial efficiency of less than 99.98% with respect to 0.4 um particles. Part 1 of the standard refers to static elements but can be applied to other filter types when appropriate.

Non prevista

00195031

UNI EN ISO 16890-2:2017 (EN ISO 16890-2:2016)

Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)

This International Standard refers to particulate air filters for general ventilation having an initial efficiency of less than 99 % with respect to 0,4 µm particles. Filters used in the ventilation of low-rise residential buildings or portable room-air cleaners are excluded from the scope of this standard. It describes the technical specifications, requirements and a method of test for the fractional efficiency measurement and resistance to airflow. The method is applicable for air flow rates between 0,25 m³/s (900 m³/h, 530 ft³/min) and 1,5 m³/s (5400 m³/h, 3178 ft³/min), referring to a test duct with a nominal face area of 0,61 m x 0,61 m. Filters in the higher end and above 99 % initial efficiency with respect to 0,4 µm particles are tested and classified according to other standards (see ISO 29463, part 1-5). Filters according to this series of standards are rated by their removal efficiency to PM10, PM2.5 and PM1 aerosol fractions. The particle collection efficiency of the filter element is measured as a function of the particle size in the range of 0,3 to 10 µm of the unloaded and unconditioned filter element. In a second step, a full filter element shall be conditioned (discharged) in an artificial aging step to provide information about the intensity of the electrostatic removal mechanism. The results from this second step are used to calculate the average efficiency in each of the PM10, PM2.5 and PM1 size ranges by weighting the fractional efficiency values according to the standardized and normalized particle size distribution of the related fraction of the ambient aerosol. This standardized and normalized particle size distribution is defined in this standard

Non prevista

00195032

UNI EN ISO 16890-4:2017 (EN ISO 16890-4:2016)

Air filters for general ventilation - Part 4: Conditioning method to determine the minimum fractional test efficiency (ISO 16890-4:2016)

This International Standard refers to particulate air filters for general ventilation having an initial efficiency of less than 99 % with respect to 0,4 µm particles. Filters used in the ventilation of low-rise residential buildings or portable room-air cleaners are excluded from the scope of this standard. It describes the technical specifications, requirements and a method of conditioning (discharging) filters in an artificial aging step to provide information about the intensity of the electrostatic removal mechanism. The method is applicable for air flow rates between 0,25 m³/s (900 m³/h, 530 ft³/min) and 1,5 m³/s (5400 m³/h, 3178 ft³/min), referring to a test duct with a nominal face area of 0,61 m x 0,61 m. Filters in the higher end and above 99 % initial efficiency with respect to 0,4 µm particles are tested and classified according to other standards (see ISO 29463, part 1-5). Filters according to this series of standards are rated by their removal efficiency to PM10, PM2.5 and PM1 aerosol fractions. The particle collection efficiency of the filter element is measured as a function of the particle size in the range of 0,3 to 10 µm of the unloaded and unconditioned filter element. In a second step, a full filter element shall be conditioned (discharged) in an artificial aging step to provide information about the intensity of the electrostatic removal mechanism. The results from this second step are used to calculate the average efficiency in each of the PM10, PM2.5 and PM1 size ranges by weighting the fractional efficiency values according to the standardized and normalized particle size distribution of the related fraction of the ambient aerosol. This standardized and normalized particle size distribution is defined in this standard.

Non prevista

00195038

UNI EN ISO 29463-5:2019 (EN ISO 29463-5:2018

High-efficiency filters and filter media for removing particles in air - Part 5: Test method for filter elements (ISO 29463-5:2011)

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Non prevista