Norm

NEN-EN-ISO 29461-1:2010 Ontw. en

Luchtinlaat filtersystemen voor machines met draaiende onderdelen - Beproevingsmethoden - Deel 1: Vaste filterelementen

51,12

Over deze norm

Status Ontwerp
Aantal pagina's 77
Gepubliceerd op 01-10-2010
Taal Engels
This standard covers methods on how to test air filters and air filter intake systems for rotary machinery like gas turbines, compressors and for stationary internal combustion engines against particle contamination. 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).This international standard applies to air filters having an initial efficiency up to 99,5% with respect to 0,4 μm particles. Filters in the higher end and above 99,95% initial efficiency are tested and classified according to other standards. This part (part 1) of the standard refers to static (barrier) filter systems but can be applied to other filter types and systems when applicable. Two methods of determining the efficiency are used in this standard: - Particle efficiency (efficiency measured in respect to particle number and size) - Gravimetric efficiency (The weighted mass removal of loading dust). Also a flat sheet media sample or media pack sample - from an identically - filter shall be conditioned (discharged) to provide information about the intensity of the electrostatic removal mechanism. After determination of its initial efficiency the untreated filter is loaded with dust in steps until its final test pressure drop is reached. Information on the loaded performance of the filter is then obtained. The performance results obtained in accordance with this standard cannot be quantitatively applied (by themselves) to predict performance in service with regard to efficiency and lifetime. Other factors influencing performance to be taken into account are described in Annex A, D (normative) and Annex B, C (informative).

Details

ICS-code 29.160.99
Nederlandse titel Luchtinlaat filtersystemen voor machines met draaiende onderdelen - Beproevingsmethoden - Deel 1: Vaste filterelementen
Engelse titel Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements
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