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Standard ČSN EN ISO 16890-4 1.1.2024 preview

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ČSN EN ISO 16890-4 (125009)

Air filters for general ventilation - Part 4: Conditioning method to determine the minimum fractional test efficiency

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STANDARD published on 1.1.2024


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The information about the standard:

Designation standards: ČSN EN ISO 16890-4
Classification mark: 125009
Catalog number: 518643
Publication date standards: 1.1.2024
SKU: NS-1161715
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Ventilation and air-conditioning systems

Annotation of standard text ČSN EN ISO 16890-4 (125009):

Tento dokument ustanovuje metodu úpravy ke stanovení minimální hodnoty frakční účinnosti při zkoušce. Tato část normy je určena pro použití ve spojení s ISO 16890 1, ISO 16890 2 a ISO 16890 3, a poskytuje související zkušební požadavky pro zkušební zařízení a klimatizační skříň, jakož i postup následující úpravy. Metoda úpravy popsaná v tomto dokumentu se vztahuje na zkoušené zařízení se jmenovitou čelní plochou 610 mm × 610 mm (24 palce × 24 palce). Tento dokument se vztahuje na filtrační prvky pro odlučování částic pro všeobecné větrání s hodnotou účinnosti ePM1 menší nebo rovnou 99 % a hodnotou účinnosti ePM10 větší než 20 %, zkoušené podle postupů stanovených v řadě ISO 16890. POZNÁMKA - Dolní mez pro tento zkušební postup je stanovena na minimální hodnotu účinnosti ePM10 20 %, protože u zkoušených filtračních prvků pod touto hranicí účinnosti by bylo velmi obtížné splnit požadavky na statistickou platnost tohoto postupu. Filtrační prvky použité u přenosných pokojových čističek vzduchu jsou vyčleněny z předmětu tohoto dokumentu

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