99 -- NITROGEN RECHARGER

Notice Date

April 4, 2001

Contracting Office

JSC White Sands Test Facility, Mail Code RE, P.O. 20, Las Cruces, NM 88004-0020

ZIP Code

88004-0020

Solicitation Number

RFQ9-WSRE-W08-1-40Q

Response Due

April 11, 2001

Point of Contact

Michael B. Lalla, Contracting Officer, Phone (505) 524-5162, Fax (505) 524-5130, Email mlalla@wstf.nasa.gov -- Vernon J. Brown, Contracting Officer, Phone (505) 524-5134, Fax (505) 524-5130, Email vbrown@wstf.nasa.gov

E-Mail Address

Michael B. Lalla (mlalla@wstf.nasa.gov)

Description

This is Amendment 2 to the synopsis entitled NITROGEN RECHARGER, Solicitation Number RFQ9-WSRE-W08-1-40Q which was posted March 9, 2001. You are hereby notified that the following question and answer are incorporated into the RFQ. Question: The required cleanliness verification and certification method has a bearing on the cost of the equipment in this system (especially the tank). Please clarify the acceptable sampling method(s) and what type of certification is required. Answer: WSTF site requirements mandate that the nitrogen gas at the outlet of the recharger meet the allowable particulate and chemical composition requirements detailed in Appendix A of the specifications. Normal WSTF procedure is to precision clean hardware surfaces to Level 300A (allowable surface particulates and non-volatile residue levels as listed in Appendix B). This level of precision clean helps to ensure that the nitrogen gas will meet the requirements of Appendix A. The WSTF procedure for verifying 300A level surface particulate requirements is as follows. The hardware is rinsed with 100 mL of 25 level, ASTM D-1193-91 type 1, ultra-pure water per square foot of surface area. The rinse water is filtered, and the particles are counted and sized under a microscope by ASTM standard procedures. This procedure, or an industry equivalent, would be acceptable for surface cleanliness verification. In accordance with paragraph 1.8.1.e of the technical specifications, the offeror may suggest alternate combinations of certified cleaning (i.e. CGA standard Oxygen Clean) and filtration to ensure that the outlet gas sample will meet the particulate and chemical composition requirements in Appendix A. The offeror should include an explanation of their proposal, as any alternate solutions will be evaluated under the "Best Value to the Government" criteria. The due date for receipt of offers is not extended.

Web Link

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Record

Loren Data Corp. 20010406/99SOL008.HTM (D-094 SN50I2E5)