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BS EN ISO 14644-1:2015

Current
Current

The latest, up-to-date edition.

Cleanrooms and associated controlled environments Classification of air cleanliness by particle concentration
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-2016

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Demonstration of compliance
Annex A (normative) - Reference method for classification
        of air cleanliness by particle concentration
Annex B (informative) - Examples of classification
        calculations
Annex C (informative) - Counting and sizing of airborne
        macroparticles
Annex D (informative) - Sequential sampling procedure
Annex E (informative) - Specification of intermediate decimal
        cleanliness classes and particle size thresholds
Annex F (informative) - Test instruments
Bibliography

Provides 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.

This part of ISO14644 specifies the classification of air cleanliness in terms of concentration of airborne particles in cleanrooms and clean zones; and separative devices as defined in ISO14644-7.

Only particle populations having cumulative distributions based on threshold (lower limit) particle sizes ranging from 0,1µm to 5µm 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 ISO14644 does not provide for classification of particle populations that are outside the specified lower threshold particle-size range, 0,1µm to 5µm. Concentrations of ultrafine particles (particles smaller than 0,1µm) will be addressed in a separate standard to specify air cleanliness by nano-scale particles. An M descriptor (see AnnexC) may be used to quantify populations of macroparticles (particles larger than 5µm).

This part of ISO14644 cannot be used to characterize the physical, chemical, radiological, viable or other nature of airborne particles.

Committee
LBI/30
DevelopmentNote
Supersedes BS 5295-1(1989) and BS 5295-4(1989) (07/1999) Supersedes 96/126782 DC (03/2002) Supersedes 10/30152865 DC. (02/2016)
DocumentType
Standard
Pages
48
PublisherName
British Standards Institution
Status
Current
Supersedes

12/30240811 DC : 0 BS 8568 - CLEANROOM ENERGY - CODE OF PRACTICE FOR IMPROVING ENERGY EFFICIENCY IN CLEANROOMS AND CLEAN AIR DEVICES
BS PAS 84(2008) : 2008 REGENERATIVE MEDICINE - GLOSSARY
PD 6609:2007 Environmental cleanliness in enclosed spaces. Guide to in situ high efficiency filter leak testing
BS 8568:2013 Cleanroom energy. Code of practice for improving energy efficiency in cleanrooms and clean air devices
BS PAS 61(2006) : 2006 DETERMINATION OF PRIORITY POLLUTANTS IN SURFACE WATER USING PASSIVE SAMPLING

ISO 14644-2:2015 Cleanrooms and associated controlled environments Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration
ISO 14644-7:2004 Cleanrooms and associated controlled environments — Part 7: Separative devices (clean air hoods, gloveboxes, isolators and mini-environments)
ISO 21501-4:2007 Determination of particle size distribution Single particle light interaction methods Part 4: Light scattering airborne particle counter for clean spaces

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