DIN EN ISO 14644-1:2016 Edition

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Cleanrooms and associated controlled environments – Part 1: Classification of air cleanliness by particle concentration

Published By	Publication Date	Number of Pages
DIN	2016-06	45

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Categories: 13.040.35 - Cleanrooms and associated controlled environments, DIN

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Description

This part of ISO 14644 establishes the classification of air cleanliness in terms of concentration of airborne particles in cleanrooms and clean zones; and separative devices as defined in ISO 14644-7:2004. 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) are addressed in ISO 14644-12, which specifies air cleanliness by nano-scale particles, while 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.

Additional information

Published Code	DIN
Published By	Deutsches Institut für Normung
Publication Date	2016-06
Pages Count	45
Language	Germany
Descriptors	Air pollution, Air purity, Air quality, Airborne dust, Categories of purity, Classification, Classification systems, Clean rooms, Cleanliness, Clean-room technology, Concentration, Concentration of particles, Consistency, Definitions, Degree of purity, Determination of content, Documentation, Exterior areas, Impurities, Light scatter measurement, Methods, Number of particles, Particle analysis, Particle size, Particle size distribution, Particles, Particulate air pollutants, Pure air, Purity criterion, Purity test, Testing, Procedures, Clean air, Processes
File Size	3.1 MB
ICS Codes	13.040.35 - Cleanrooms and associated controlled environments

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DIN EN ISO 14644-1:2016 Edition

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