Norm

NEN-EN-ISO 14644-1:2016 en

Stof- en kiemarme ruimten en omgevingen - Deel 1: Classificatie van luchtreinheid op basis van deeltjesconcentraties

143,10

Over deze norm

Status Definitief
Aantal pagina's 37
Commissie Cleanrooms
Gepubliceerd op 01-01-2016
Taal Engels
NEN-EN-ISO 14644-1 specifies the classification of air cleanliness in terms of concentration of airborne particles in cleanrooms and clean zones; and separative devices as defined in ISO 14644-7. Only particle populations having cumulative distributions based on threshold (lower limit) particle sizes ranging from 0,1 μm to 5 μm are considered for classification purposes. The use of light scattering (discrete) airborne particle counters (LSAPC) is the basis for determination of the concentration of airborne particles, equal to and greater than the specified sizes, at designated sampling locations. This part of ISO 14644 does not provide for classification of particle populations that are outside the specified lower threshold particle-size range, 0,1 μm to 5 μm. Concentrations of ultrafine particles (particles smaller than 0,1 μm) will be addressed in a separate standard to specify air cleanliness by nano-scale particles. An M descriptor (see Annex C) may be used to quantify populations of macroparticles (particles larger than 5 μm). This part of ISO 14644 cannot be used to characterize the physical, chemical, radiological, viable or other nature of airborne particles.

Details

ICS-code 13.040.35
Nederlandse titel Stof- en kiemarme ruimten en omgevingen - Deel 1: Classificatie van luchtreinheid op basis van deeltjesconcentraties
Engelse titel Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration
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