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  • BSI
    BS EN ISO 14644-1:2015 Cleanrooms and associated controlled environments - Classification of air cleanliness by particle concentration
    Edition: 2016
    $500.66
    / user per year

Description of BS EN ISO 14644-1:2015 2016

This part of ISO 14644 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.



Standard NumberBS EN ISO 14644-1:2015
TitleCleanrooms and associated controlled environments - Classification of air cleanliness by particle concentration
StatusConfirmed
Publication Date2016-01-31
ReplacesBS EN ISO 14644-1:1999
Identical National Standard OfISO 14644-1:2015, EN ISO 14644-1:2015
DescriptorsOutliers, Particulate air pollutants, Sampling methods, Environmental cleanliness, Statistical methods of analysis, Designations, Conformity, Sample location, Samples, Classification systems, Algorithms, Particle size distribution, Mathematical calculations, Concentration, Clean rooms, Test equipment, Sequential sampling
ICS13.040.35 Cleanrooms and associated controlled environments
CommitteeLBI/30
ISBN978 0 580 57297 5
PublisherBSI
Pages48

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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