PD 6609:2000

Committees responsible
Foreword
1 Scope
2 Measurement of pressure difference
3 Measurement of filter performance
4 Measurement of particulate contamination of
      microscopic sizing and counting
Annex A (informative) Reproduction from BS 5295-1:1989
                      (withdrawn) of Appendix B: Method of
                      test for the determination of pressure
                      differences
Annex B (informative) Reproduction from BS 5295-1:1989
                      (withdrawn) of Appendix C: Method of
                      test for the determination of filter
                      installation leaks
Annex C (informative) Reproduction from BS 5295-1:1989
                      (withdrawn) of Appendix F: Method of
                      test for the determination of
                      particulate contamination by
                      microscopic sizing and counting
Bibliography
Figure 1 - Diagrammatic representation of aerosol filter
           testing requirements of BS 5295-1:1989
           (withdrawn)
Figure 2 - Schematic diagram of aerosol challenge to air
           handling unit
Figure 3 - Typical aerosol output versus operating pressure
           of hot generated aerosol
Figure F2 - Calibration of the measuring eyepiece
Figure F3 - Reduced unit area

Provides the recommendations and explanatory guidance in respect of the determination of pressure differences, the determination of filter performance and the determination of particulate contamination by microscopic sizing and counting.