National Archives and Records Administration, Acquisitions Services Division (NAA), 8601 Adelphi Road, Room 3360, College Park, MD 20740-6001

99 -- MEASUREMENTS OF POLLUTANT GASES POC Patrick Alexander, (301) 713-6470x231 The National Archives and Records Administration seeks sources to measure the levels of pollutant gases in building air handlers to monitor the performance of filtering media. Ozone, sulfur dioxide, nitrogen dioxide, acetic acid, and formaldehyde levels will be measured upstream and downstream from the filters. The preferred methodology will use an off-the-shelf, passive system that will be inserted in the 20,000 cfm air stream; however sampling ports are available. The monitoring period will be a minimum of 24 hours and a maximum of 1 week. Previous measurements found pollutant levels typically in the range 1 to 100 ppb. The lower detection limit for each gas must not be more that 1 ppb. Ozone, sulfur dioxide, and nitrogen dioxide will be measured at temperatures ranging from 20 to 100F and humidities ranging from 10 to 95% RH. Acetic acid and formaldehyde will be measured at temperatures ranging from 40 to 70F and humidities ranging from 20 to 50%RH. Measurement will be made quarterly. Each year 25-30 measurements will be made of ozone, sulfur dioxide, and nitrogen dioxide. Approximately 240 measurements of acetic acide and formaldehyde will be made each year. Additional tests may be necessary if filter performance is unsatisfactory. THIS IS NOT A REQUEST FOR PROPOSAL. NO SOLICITATION PACKAGE WILL BE ISSUED. The Government WILL NOT respond to any request for a solicitation package in response to this request for information. this announcement is for the sole purpose of identifying potential sources and does not commit the Government to make an award. Please forward all commercial descriptive literature and commercial price lists to: Mr. Patrick Alexander (NAFM A11), Room 2320, 8601 Adelphi Road, College Park, MD 20740-6001. (0120)

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