USDA, ARS, Pacific West Area, 800 Buchanan Street, Albany, California 94710

66 -- AERODYNAMIC PARTICLE SIZE ANALYZER SOL IFB No. 20-91H2-96 DUE 070396. Contact Ken Eason, 510/559-6018, FAX 510/559-6023, Contract Specialist. The USDA, Agricultural Research Service, Pullman, WA has a requirement for an aerodynamic particle size analyzer for measurement of very fine particulate dust in the atmosphere. It must be based on the dual laser aerodynamic acceleration methodology, it must be field capable with 24 volt input, and have an enclosure rugged enough to be used in the field rather than on a laboratory basis. The aerosol instrument must be able to measure two particle-size parameters, aerodynamic diameter and light-scattering intensity, simultaneously. Instrument methodology is the US/EPA Federal Reference Method for measurement of airborne particulate distributions in ambient air. Instruments results must be transferable and acceptable to US/EPA. The instrument must operate on 120VAC or 24VDC. The government intends to negotiate with the only known responsible source, which is TSI Incorporated of St. Paul, Minnesota. A solicitation is not available for this notice. Interested firms are encouraged to submit proposals containing descriptive literature of their products to the mailing address shown in this notice. Responses must be received by July 3, 1996. See Numbered Note 22. (156)

Loren Data Corp. http://www.ld.com (SYN# 0362 19960607\66-0009.SOL)