BS 5295-1:1989

Superseded

View Superseded by

Environmental cleanliness in enclosed spaces Specification for clean rooms and clean air devices

Available format(s)

Hardcopy , PDF

Superseded date

15-08-1999

Language(s)

English

Published date

29-09-1989

Publisher

British Standards Institution

Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 Designation of environmental cleanliness
4 Air pressure
5 Filtration
6 Certification of compliance
Appendices
A Illustration of particulate content limits for
   designated classes of environmental cleanliness
B Method of test for the determination of pressure
   differences
C Method of test for the determination of filter
   installation leaks
D Method of test for the determination of induction
   leaks from construction joints
E Method of test for the determination of particulate
   contamination by microscopic sizing and counting
Tables
1 Comparison with classes of 1976 edition
2 Requirements for controlled environment installations
3 Maximum permitted concentration for filter
   installation leaks
4 Minimum challenge aerosol concentrations for
   induction leak testing
5 Maximum permitted concentration for induction leaks
6 Factors and grid squares to be used in estimating
   total particle counts
Figures
1 Maximum number of particles of a given particle size
   for designated classes of environmental cleanliness
2 Calibration of the measuring eyepiece
3 Reduced unit area

Ten classes of environmental cleanliness according to level of particulate content. For industrial medical and pharmaceutical fields. Test methods for control of particulate content are given in appendices. See also PD 6609.

Committee	LBI/30
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN ISO 14644-1:2015 BS EN ISO 14644-1:1999
Supersedes	BS 5295-1:1976

BS 3406-7:1988	Methods for determination of particle size distribution Recommendations for single particle light interaction methods
BS 5295-2:1976	Environmental cleanliness in enclosed spaces Guide to the construction and installation of clean rooms, work stations and clean air devices
BS 3406-4:1963	Methods for determination of particle size distribution Optical microscope method
BS 7011-1.1(1989) : 1989	CONSUMABLE ACCESSORIES FOR LIGHT MICROSCOPES - IMMERSION OILS - SPECIFICATION FOR IMMERSION OILS FOR GENERAL USE
BS 7011-2.1:1989	Consumable accessories for light microscopes. Slides. Specification for dimensions and optical properties