Key Word Index Entries were taken from the key words given by authors of the papers printed herein. Reference is to the person who presented the paper at the seminar. Although this index is not exhaustive, it should serve as a subject guide. AEROSOL MEASUREMENTS, PROCEEDINGS OF SEMINAR THOR(S) W. A. Cassatt and R. S. Maddock, editors RFORMING ORGANIZATION NAME AND ADDRESS NATIONAL BUREAU OF STANDARDS ponsoring Organization Name and Complete Address (Street, City, State, ZIP) Jational Bureau of Standards Food and Drug Administration, Washington, D.C. 5. Publication Date October 1974 6. Performing Organization Code 8. Performing Organ. Report No. 10. Project/Task/Work Unit No. 11. Contract/Grant No. 13. Type of Report & Period Covered 14. Sponsoring Agency Code UPPLEMENTARY NOTES Library of Congress Catalog Number: 74-600164 ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant or literature survey, mention it "Papers followed by discussions were given in a closed seminar and workop sponsored by the National Bureau of Standards and the Food and Drug ninistration to define the state of development of aerosol measuring struments. The instruments discussed were based upon a variety of erating principles including laser light scattering, optical imaging, ppler shift, electromobility, piezoelectric effect, and beta-ray absorpon. Two review papers were given which described other phenomena upon ich aerosol measurements are based. The general summary includes a ble which lists the specifications of the instruments discussed to lustrate the range of capabilities available in this field. Discussion ong seminar attendees revealed that many questions remain to be answered fore the more difficult aerosol measurements problems can be solved. 'r example, in the analysis of very dense aerosols questions arise conrning coincidence losses or agglomeration effects that may result from llisions between particles as they are drawn into the measuring volume. ›latilization or condensation effects may alter the size distribution if le measurements are made late in time. Finally, variations in particle ape or index of refraction can alter the instrument response and cause fficulties in interpretation. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons) Aerosol instrument performance; aerosol measuring instruments; beta-ray absorption; Doppler shift; electromobility; laser light scattering; optical imaging; piezoelectric effect 19. SECURITY CLASS 21. NO. OF PAGES UNCL ASSIFIED 20. SECURITY CLASS U.S. GOVERNMENT PRINTING OFFICE: 1974 O-561-452 UNCLASSIFIED 412 22. Price $2.65 USCOMM-DC 29042-P74 |