Department of Commerce, Mountain Administrative Support Center, Procurement Division, MC3, 325 Broadway, Boulder, CO 80303-3328

66 -- RHEOMETER SOL 52RANB50C098 DUE 080195 POC Marilyn Scherer (303) 497-3657 In the absence of other qualified sources it is the intent of the National Institute of Standards and Technology (NIST) to purchase one rheometer from Bohlin Instruments, 2540 Route 130, Cranberry, NJ 08512 under ''Other than Full and Open Competition'' procedures pursuant to 41 USC 253(c)(1) - only one responsible source. The requirement is for a complete system for rheological measurements in research, quality control and development consisting of a drag cup motor, and low inertia upper fixture supported by a frictionless air bearing capable of operating at rotation speeds up to 320 rad/sec with low inertia non-contacting angular deflection sensors providing resolution down to 10 to the minus 6 radians. The instrument must be operable in constant stress, constant strain rate, and oscillation modes. Hardware and control and analysis software must be provided to allow measurements of creep and recovery, flow behavior, dynamic oscillatory measurements, stress viscometry and constant rate measurements. The instrument must be able to be configured to allow simultaneous light scattering and rheological measurements and be operable over the temperature range of -15 to 250 degrees celsius. A vibration isolation platform must be provided. The base of the instrument must be less than 8'' x 8''. When configured with Couette sample cells it must provide, at fixed distance, an unobstructed view of the sample area within a maximum height limit of 12'' above the base of the vibration isolation platform. The instrument must be fully computer automated and capable of integration with the existing computer control systems including the PCs and VAX systems of the NIST Cold Neutron Research Facility (CNRF). The instrument must be easily transportable. To be considered, interested firms must submit a written qualification statement that clearly establishes the firm's capability to meet the above requirements. This qualification statement shall be submitted to the individual and office cited above within 45 days from the date of this synopsis. This is not a formal solicitation. See Note 22. (0178)

Loren Data Corp. http://www.ld.com (SYN# 0454 19950628\66-0021.SOL)