Naval Research Laboratory, 4555 Overlook Ave. S.W. WASHINGTON, D.C. 20375

35 -- PREVENTATIVE MAINTENANCE ON TOXIC GAS ALARM SYSTEM SOL N00173-98-Q-0041 POC Darlene Copp, Purchasing Agent, (202) 767-2374 Fax (202) 404-8158. Naval Research Laboratory intends to solicit and negotiate only with Zellweger Analytics Incorporated to procure preventative maintenance/calibration for toxic gas alarm system. System is located in BLDG 208 & A-11 at the Naval Research Laboratory, 4555 Overlook Avenue, S.W. Washington DC. Contractor will provide one field service engineer for thirteen one day calls per year. One day call every four weeks to perform tape changes and preventative maintenance on four systems 16's. One field service engineer for one day per call for two calls per year to calibrate thirty points of hydrogen sensors. Calls will be made in conjunction with two of the thirteen maintenance calls. These two calls will be spaced at six month intervals so that sensors will be calibrated twice per year. One field service engineer for one day per call for up to three emergency calls per year, emergency calls will be made with a response time of twenty-four hours or less. Parts are not included, however a 15% discount on all parts used during preventative maintenance calls, emergency service calls, and instruments sent to Zellweger Analytics for repair will be provided. Any hydrogen sensor replacement for instance will be billed separately. Hydrogen calibration gas, as well as internal filters and belts, will be supplied by the contractor. <All calls including emergency calls will be made on weekdays. There will be an extra charge for any calls made on holiday and/or weekends> A one year supply of chemcassettes consisting of (for BLDG. 208 & A-11: BLDG. 208; LP Hydride chemcassettes for two analyzer heads, LP chlorine chemcassettes for one analyzer head, LP ammonia chemcassettes for one analyzer head, LP mineral acids chemcassettes for one analyzer head. BLDG. A-11; LP hydride chemcassettes for one analyzer head, These will be supplied during each service call and includes one set of each, to be left on site during the first service call as backups for any emergencies; Contractor will be responsible for rotating the stock on these emergency backup chemcassettes. Contract will be in effect for one year from the date awarded. See Numbered Note(s): 22. (0078)

Loren Data Corp. http://www.ld.com (SYN# 0260 19980323\35-0001.SOL)