NIST Gaithersburg Campus is seeking sources who are a ASME “R” stamp qualified boiler repair and welding contractor to perform high pressure steam boiler repair and fuel tank cleaning at Bldg. 302, NI... NIST Gaithersburg Campus is seeking sources who are a ASME “R” stamp qualified boiler repair and welding contractor to perform high pressure steam boiler repair and fuel tank cleaning at Bldg. 302, NIST, Gaithersburg, MD. Please see attached Sources Sought and Statement of Work (SOW) for details.