NASA/Lyndon B. Johnson Space Center, Houston Texas, 77058-3696, Mail Code: BH

99 -- WASTE COLLECTOR SUBSYSTEM (WCS), INTERNATIONAL SPACE STATION (ISS) SOL 9-BH13-46-9-WCS DUE 083199 POC Keith D. Hutto, Contracting Officer, Phone (281) 483-4165, Fax (281) 244-5337, Email keith.d.hutto1@jsc.nasa.gov -- Keith D. Hutto, Contracting Officer, Phone (281) 483-4165, Fax (281) 244-5337, Email keith.d.hutto1@jsc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/JSC/date.html#9-BH13-46-9-WCS. E-MAIL: Keith D. Hutto, keith.d.hutto1@jsc.nasa.gov. NASA/JSC is hereby soliciting information for potential sources for Internation Space Station (ISS) Waste Collector Subsystem (WCS). The ISS WCS, or space toilet, collects human urine and fecal matter in a zero-g environment. Urine is collected by means of a liquid/gas separator. Liquid is pumped into a storage tank, while the air is passed through an odor/bacteria filter, then expelled into the crew cabin. Fecal matter is collected by means of a commode fan developing negative pressure within a fecal collection area just under the user seat. A bag is placed in the fecal collection area to capture all fecal matter during defecation. The fecal bag is placed within a fecal canister after use for subsequent disposal. There are redundant liquid/gas separators and commode fans. The ISS WCS was originally developed under a mix of Space Shuttle and Space Station requirements. Recent events have dictated the need to fully convert this unit for ISS application. In order to properly operate the ISS WCS onboard ISS, a few system modifications must be executed. For example, switching commode fan motors from AC to DC powered and adding their respective DC motor controllers. Also, modifying the master controller by removing the AC to DC converter and incorporating power converters for 120 VDC to 28VDC, 28 VDC to 5 VDC (for logic board), logic circuitry, and power distribution. Some minor mechanical modifications will also be necessary, namely involving installation of check valves, quick disconnects, and associated plumbing in the fluid lines. The effort will require the design, development, and certification of all hardware, including design modifications, to meet applicable ISS specifications. Interested parties having experience with flight hardware involving electrical systems, such as motor controllers, motors, and avionic systems should submit a company portfolio to JSC for further consideration. No solicitation exists; therefore, do not request a copy of the solicitation. If a solicitation is released it will be synopsized in the CBD and on the NASA Acquisition Internet Service. It is the potential offerors responsibility to monitor these cites for the release of any solicitation or synopsis. Interested offerors/vendors having the required specialized capabilities to meet the above requirement should submit a capability statement of 6 pages or less indicating the ability to perform all aspects of the effort described herein. Technical questions should be directed to: Ketan (KC) Chhipwadia @281-483-7633. Procurement related questions should be directed to: Keith Hutto @281-483-4165. Please advise if the requirement is considered to be a commercial or commercial-type product. A commercial item is defined in Internet "Note A". This synopsis is for information and planning purposes and is not to be construed as a commitment by the Government nor will the Government pay for information solicited. Respondents will not be notified of the results of the evaluation. Respondents deemed fully qualified will be considered in anyresultant solicitation for the requirement. The Government reserves the right to consider a small business or 8(a) set-aside based on responses hereto. All responses shall be submitted to Ketan Chhipwadia (KC) no later than August 31, 1999. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html Posted 08/11/99 (D-SN366554). (0223)

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