National Institute of Standards & Technology, Acquisition & Assistance Div.,100 Bureau Drive Stop 3572, Bldg. 301, Rm B117, Gaithersburg, MD 20899-3572

66 -- VACUUM COMPARATOR SOL 53SBNB9C1060 DUE 070599 POC Angela Mills, Contract Specialist, (301) 975-8008 or Sandra Febach, Contracting Officer, (301) 975-6326 WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. The National Institute of Standards and Technology (NIST), intends to negotiate on a sole source basis with Metrotec Engineering ag, Friedackerstrasse 6, CH 8050 Zurich, Switzerland for 1 vacuum mass comparator system with option for weighing spherical objects. The system shall be capable of being operated in vacuum and has a 0.0001mg readability and a repeatablility of less than 0.0003 mg for a total weighing capacity of 1001.5g. The system shall includes an automatic weight handling system which allows for the automatic determination of four weights including spherical objects. The system shall include an air-tight enclosure to allow for operation under vacuum conditions. In addition the system must meet the following requirements: Readability: 0.001 mg. Maximum capacity: 1001.5 g. Electrical weighing range: 1.5 g. Repeatability: < 0.003 mg. Linearity: +/- 0.004 mg. Stabilization time: 25s. Admissible ambient conditions: Temperature: 17-27 C (+/-0.1 C). Relative Humidity: 45-60%. Pressure inside enclosure: 10-3 mbar -- ambient Standard equipment: Weight handler: for the automatic determination of 4 weight pieces with 12 mm < diameter < 90 mm, height < 100 mm with option for spherical objects 40 mm < diameter < 100 mm Control software: Software for operation on an IBM-compatible PC. Display: separate control unit with LCD. Data interface: CL/RS232C. Dimensions: Balance: 274x501x620 mm; 33.5 kg. Air-tight enclosure: 684x884x908 mm; 120 kg. Weighing cell control unit:202x294x92; 2.5 kg. AC adapter: 115x140x53 mm; 1.2 kg. Weight handler control unit: 202x197x92 mm; 2.5 kg. AC adapter: 76x127x40 mm; 0.5 kg. Metrotec is the only contractor capable of providing this system based on their expertise and knowledge of the requirements that the systems must meet to satisfy NIST's measurement goals. FOB: Destination, Gaithersburg, MD. No solicitation package will be issued. A Request for Proposal will be issued to Metrotec Engineering ag. Friedackerstrasse. The anticipated award date is on or around 30 days from the date of this notice. In accordance with FAR 5.207(e)(3), Numbered Note 22, DOES NOT APPLY. Posted 06/30/99 (W-SN348801). (0181)

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