The National Institute of Standards and Technology (NIST) is conducting market research to identify sources for a dedicated ozone exposure chamber to support research on residential foundation damage caused by pyrrhotite-containing aggregate. The chamber must achieve ozone concentrations from 0 to 1000 ppm, have a minimum size of 3 cubic feet, and include an ozone analyzer, destruct unit, safety interlock, and ambient leak sensor. Performance of services will be at the NIST Gaithersburg campus, with delivery of one unit required. No budget amount is specified in this sources sought notice. Responses are requested as soon as possible, with a preferred submission timeframe before the closing date.