Renovation of an educational facility in Gaithersburg, Maryland. Working plans call for the renovation of a educational facility.

NB195000-26-00181 Repair and modernization work within the Building 215 Advanced Measurement Laboratory (AML) cleanroom, encompassing approximately 1,800 square meters and including approximately 750 square meters of Class 100 cleanroom space. The work includes replacement of approximately 1,200 terminal supply HEPA filters; repair and/or modification of HEPA filter connections; testing, balancing, certification, and recertification of affected HEPA filters and cleanroom spaces; replacement of approximately 70 variable air volume (VAV) terminal units; replacement of approximately 54 airflow monitoring devices; installation of approximately 32 exhaust air control valves; modification and repair of associated ductwork; rebalancing of associated air-handling and exhaust systems; verification and repair of existing capped ductwork; controls-related work; and cleaning, testing, balancing, commissioning, and cleanroom certification associated with each affected area. The work also requires protection of existing cleanroom spaces, ongoing research operations, and sensitive scientific equipment throughout construction. Construction is contemplated through phased cleanroom outages rather than a full facility shutdown. The previous approach included 19 construction phases consisting of 18 critical cleanroom outage phases and one non-critical phase. Each critical outage phase was planned to include construction, startup, testing, balancing, cleaning, commissioning, and applicable cleanroom certification, with affected areas required to achieve ready-for-reoccupancy status upon completion. Unaffected cleanroom bays are intended to remain operational to the maximum extent practicable during project execution. Location: National Institute of Standards and Technology (NIST), Building 215, 100 Bureau Drive, Gaithersburg, MD 20899.