# Gas Detection System Maintenance

Canonical: https://abierto.us/opportunities/1333nd26qnb190501

- Solicitation number: 1333ND26QNB190501
- Notice type: Solicitation
- Status: Closed. Deadline was September 9, 2026 at 10:00 AM EDT
- Department: Department of Commerce
- Agency: National Institute of Standards and Technology
- Contracting office: Department of Commerce NIST (1333ND)
- NAICS: 811210 Electronic and Precision Equipment Repair and Maintenance
- Product or service code: J036 Maintenance, Repair and Rebuilding of Equipment: Special Industry Machinery
- Set-aside: Total small business set-aside
- Place of performance: Gaithersburg, Maryland
- First posted: August 24, 2026
- Last posted: September 1, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/b201f525c51c481c9c589556946555a8/view

## Description

AMENDMENT 0001 - The purpose of this amendment is to:

1. Provide a response to a solicitation question we received.

2. Provide revised PWS dated 09/01/2026.

The purpose of this requirement is to provide Gas Detection System Maintenance at the NIST Gaithersburg Campus located in Gaithersburg, MD. Please review the Solicitation attachment for details.

The contractor shall provide all labor, materials, supplies (including certified calibration gas bottles), transportation, insurance and equipment (including a 30-foot manlift) to service and calibrate the NIST building 302 three (3) Carbon Monoxide (CO), four (4) Natural Gas (Combustible), three (3) Oxygen depletion, and thirty (30) 134a Refrigerant sensors and transmitters, and service two (2) Gas Control (Monitoring) panels.

Please reference Attachments 1 through 5 for drawings and manuals that provide the type and approximate location of all the sensors and transmitters, as well as service and calibration information.

## Publications

- August 24, 2026: Solicitation, due September 9, 2026 at 10:00 AM EDT. Notice e27a831247c54b12adaa63c9394da0c2. https://sam.gov/workspace/contract/opp/e27a831247c54b12adaa63c9394da0c2/view
- September 1, 2026: Solicitation, due September 9, 2026 at 10:00 AM EDT. Notice b201f525c51c481c9c589556946555a8. https://sam.gov/workspace/contract/opp/b201f525c51c481c9c589556946555a8/view

## Points of contact

- Helen Wesley, helen.wesley@nist.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/1333nd26qnb190501.