Metrology-grade Chilled Mirror Dew Point Hygrometers

The Department of Commerce, National Institute of Standards and Technology, is soliciting proposals for metrology-grade chilled mirror dew point hygrometers under solicitation number 1333ND26QNB680396. This combined procurement requires highly accurate instruments capable of measuring dew point with traceability to national standards, intended for use in calibration, research, and precision environmental monitoring applications. Proposals must demonstrate technical compliance with metrology-grade specifications, including performance benchmarks, traceability documentation, and calibration protocols aligned with NIST requirements. The contract will be awarded to a vendor capable of delivering equipment that ensures long-term stability, minimal drift, and rigorous repeatability under controlled laboratory conditions. The solicitation was posted on July 31, 2026, with a response deadline of August 11, 2026, at 3:00 PM Eastern Time. All responses must be submitted through the SAM.gov portal, and performance is expected to occur at the NIST facility in Gaithersburg, Maryland, 20899. The North American Industry Classification System code is 334516, indicating instruments and laboratory equipment manufacturing. The sole point of contact for inquiries is Forest Crumpler, reachable via email at forest.crumpler@nist.gov. There is no set-aside designation for this solicitation, meaning it is open to all eligible vendors regardless of business size or ownership status.