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  • BSI
    BS EN ISO 14644-17:2021 Cleanrooms and associated controlled environments - Particle deposition rate applications
    Edition: 2021
    $418.55
    / user per year

Description of BS EN ISO 14644-17:2021 2021

This document gives direction on the interpretation and application of the results of the measurement of particle deposition rate on one or more vulnerable surfaces in a cleanroom as part of a contamination control programme. It provides some instructions on how to influence the particle deposition rate and reduce the risk of particle contamination on vulnerable surfaces.

This document gives information on how a cleanroom user can use the particle deposition rate measurements to determine limits that can be set for macroparticles on vulnerable surfaces. It also gives a risk assessment method by which an acceptable risk of deposition of particles onto vulnerable surfaces in a cleanroom can be established and, when this is not achieved, methods that can be used to reduce the particle deposition rate.

An alternative to the particle deposition rate is the particle obscuration rate which determines the rate of increase of coverage of particles onto an area of surface over time. The particle obscuration rate can be used in an analogous way to the particle deposition rate and the required particle obscuration rate for a specified surface can be calculated and the risk from deposited particles reduced.

This document does not:

  • provide a method to classify a cleanroom with respect to particle deposition rate or particle obscuration rate;

  • directly consider the deposition of microbe-carrying particles, although they can be treated as particles;

  • give any consideration to surface deposition by contact as, for example, when personnel touch a product and contamination is transferred.



Standard NumberBS EN ISO 14644-17:2021
TitleCleanrooms and associated controlled environments - Particle deposition rate applications
StatusDefinitive
Publication Date2021-03-02
Identical National Standard OfENISO 14644-17, ISO 14644-17
DescriptorsClean rooms, Atmospheric contamination, Contamination, Testing, Air hygiene, Air pollution control, Air control devices
ICS13.040.35 Cleanrooms and associated controlled environments
CommitteeLBI/30
ISBN978 0 539 02799 0
PublisherBSI
Pages36

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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