National Institute of Standards and Technology, Acquisition and Assistance Division, Building 301, Room Bll7, Gaithersburg, MD 20899

66 -- PARTICLE SIZE ANALYZER BASED ON ACOUSTIC ATTENUATION SPECTROSCOPY SOL 52SBNB5C8665 DUE 041895 POC Trena N. Bercaw (301) 975-6324/Pauline E. Mallgrave (301) 975-6330 The National Institute of Standards & Technology has a requirement for one (1) particle analyzing instrument for particle characterization based on Acoustic Attenuation Spectroscopy in the 1 to 100 MHz frequency range. This instrument shall be capable of measuring particle size in the range of 0.01 to 10 micrometers, with a particle concentration range of 1 to 50 volume %. It shall consist of a four (4) color, ink jet printer for hardcopy output of data, as well as appropriate computer software and hardware for measurement and analysis control. All necessary tubing, pumps, and sample containers shall also be furnished by the contractor. Installation, support and shipment of all materials shall be the responsibility of the contractor. The F.O.B. Point shall be destination, Gaithersburg, Maryland. The required delivery time is 45 days after award of contract. It is the intent of the Government to negotiate with PenKem, Inc. of Bedford Hills, New York, in accordance with 41 U.S.C. 253 (c)(1), as being the only responsible source able to satisfy the needs of this agency. No solicitation package is available. See Numbered Note 22. (0062)

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