NATIONAL NAVAL MEDICAL CENTER, BETHESDA, MD 20889-5600

66 -- PORTABLE C02 ANALYZERS FOR HYPERBARIC CHAMBER SOL N6422397RCQ6004 DUE 012797 POC Contracting Officer, Mary A. Lutton, (301) 295-6491. The National Naval Medical Center has a requirement for the Decompression Department, Naval Medical Research Institute, Bethesda, MD for the purchase of 12 Model HB1.1 Anagas Hyperbaric CO2 Analyzers, Range 0-25, 000ppm SEV with Battery Chargers. NNMC intends to award a sole sourced purchase order to Geotechnical Instruments, Rockville, MD for these analyzers. Specifications/minimum requirements for the portable CO2 Analyzers for Hyperbaric Chamber are as follows: Method: nondispersive Infrared (NDIR); Range, CO2: 0 to 2.5%1; Range, Pressure: 1 to 6 atmospheres absolute (ATA); Power: Rechargeable battery power. Must permit 115 VAC line operation; Sampling Pump: A brushless internal sampling pump; Display: Backlit digital display; Accuracy: +/-10% relative; Repeatability: +/-10% relative; Response: Must reach 90% of final value in less than 60 sec.; Zero Drift, constant temp: less than 0.5% per week; Zero Drift, temp effect: less than 0.1% per deg. C; Alarms: Not required; Operating temp range: 0 to 40 deg. C; Storage temp range: 0 to 40 deg. C; Weight: less than 10 lbs.; Dims: Prefer rectangular shape or square shape less than 0.5 cu ft; Output signal: RS485 output for remote display; Calibration: Signal point calibration NOTE: The unit will be calibrated at 1 ATA and then it must be capable of displaying the % CO2, Surface Equivalent Value (SEV), at any pressure from 1 to 6 ATA without additional calibration. This means that the unit may be able to compensate for the CO2 Infrared band, pressure broadening, effect, etc. Testing of candidate units in hyperbaric chambers will done at NMRI facilities which will be available to manufacturers who do not have this capability. Certification of candidate units for use in US Navy Hyperbaric chambers is the responsibility to NMRI/NAVSEA. The Geotechnical, Inc Model BH1.1 portable CO2 analyzer meets all of the listed requirements and has received NAVSEA approval for use inside pressurized DDS shelters on fleet submarines. No other manufacturers have been able to meetthese specifications. There will be no solicitation issued. All responsible sources may submit an offer which shall be considered. A determination by the Government not to compete this proposed contract based upon responses to this notice is solely within the discretion of the Government. This action is unrestricted. Information received will normally be considered solely for the purpose of determining whether to conduct a competitive procurement. Anticipated award date is 1 Feb 1997. This acquisition is being conducted under the guidelines as set forth in the Simplified Acquisition Procedures (SAP). (0014)

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