NASA/George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812

66 -- ENHANCED UV SOURCE SOL 8-1-0-E3-C8505 DUE 072600 POC Gloria J. Coffey, Contract Specialist, Phone (256) 544-9187, Fax (256) 544-8688, Email gloria.coffey@msfc.nasa.gov -- David A. Iosco, Contracting Officer, Phone (256) 544-0387, Fax (256) 544-4400, Email david.iosco@msfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=62#8-1-0-E3-C8505. E-MAIL: Gloria J. Coffey, gloria.coffey@msfc.nasa.gov. This Modification 2 supersedes Modification 1. The purpose of this amendment is open this procurement to interested parties on a Small Business Set-Aside basis. All qualified, responsible small business sources may submit a quote which shall be considered by the Agency. An ombudsman has been appointed -- See internet Note "B." Prospective offerors shall notify this office of their intent to submit an offer. It is the offeror's responsibility to monitor this site for the release of the solicitation and amendments (if any). Potential quoters will be responsible for downloading their own copy of this solicitation and amendments (if any). Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html . The following ADDITIONAL SPECIFICATIONS are to be used in the preparation of quotations. The closing date is extended to CLOSE OF BUSINESS July 26, 2000. The revised, updated information is provided as follows: Line Item 1 is clarified to read: 1000 watt enhanced ultraviolet solar simulator, 8 inch x 8 inch beam size, dichroic mirror system which absorbs 80% of the incident infrared radiation, Lamp housing easily changed to produce vertical or horizontal beam, simulator to produce ultraviolet radiation from 250 nm to 400 nm, photons produced below 250 nm are desirable, Intensity to be variable from 1 to 10 UV suns at Air Mass Zero at a distance of 3 feet from the lamp housing, Intensities of greater than 10 UV suns are desirable, but not required, Provide spectral data of simulator output showing W/sq.m/nm -vs- Photon wavelength, Lamp housing to be compatible and operate using Commercial Off-The-Shelf (COTS) 1 KW Xe or HgXe lamps such as ORC model HVF1000-3, ignitor external to lamp housing, power supply to operate lamp to be included, power supply to operate with 220 VAC 1 phase or 110 VAC 1 phase, Oriel Model Number 91294 or equal. QUANTITY: 1 each. PREVIOUSLY, Item 1 read as follows: 1000 Watt enhanced ultraviolet solar simulator, 8 inch x 8 inch beam size, dichroic mirror system which abosrbs 80% infrared radiation, lamp housing easily changed to produce vertical or horizontal beam, transmits ultraviolet radiation from 210 nm to 400 nm, ignitor external to lamp housing, power supply to operate lamp included, power supply to operate with 220 vac 1phase oriel model number 91294. Quantity 1 each. Line Item 2 remains unchanged, and reads as follows: Air Mass 0 outer space filter, corrects the output of a xenon lamp to better match the solar spectrum found outside the earth's atmosphare, compatible with item 1, Oriel Model Number 81011 (*OR EQUIVALENT.) QUANTITY: 1 each. As stated above, the closing date for receipt of quotations is extended to CLOSE OF BUSINESS July 26, 2000. Any responses received after this date WILL NOT be considered. Posted 07/13/00 (D-SN474597). (0195)

Loren Data Corp. http://www.ld.com (SYN# 0310 20000717\66-0008.SOL)

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