SYMPOSIA PAPER Published: 01 January 1963

Enumeration of Airborne Particulate Matter by the Scattered Light Technique


Airborne particulate matter has been counted in the size range of 0.32 μ to 8 μ by means of the scattered-light technique. Dust levels in a variety of typical work areas employed in electronic device development and manufacture are reported with a description of some of the factors contributing to these levels. Other measurements relate dust counts to the number of personnel and their activity, to changes in personnel levels during a 24-hr period, to filtering methods employed to remove dust, and work-hood design. A comparison is made of these counts with counts obtained by the petri dish method, which counts are indirectly similar, and with the proposed ASTM referee method.

Author Information

Pudvin, J.
Bell Telephone Laboratories, Allentown, Pa.
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: F01
Pages: 35–47
DOI: 10.1520/STP44478S
ISBN-EB: 978-0-8031-6211-2
ISBN-13: 978-0-8031-6139-9