MicroView Mini 6000 Hygrometers Supersonic Wind Tunnel.

Statement of Work (SOW) / Performance Work Statement (PWS)

To provide instrumentation for measuring tunnel dewpoint temperature to accurately correct test section operating conditions for the presence of water vapor, which is critical for data quality in the facility.

• Supply Stephens Analytical MicroView Mini 6000 hygrometers.

• Supply Rack Mount Back Plates (19"x5.25").

• Microview Mini 6000 Hygrometers (Qty: 4):

  • Operating Range: 5-6000 ppm(V)
  • Temperature Controlled Silicon Chip Moisture Sensor
  • Automated Push Purge
  • System Alarm (normally closed, open during alarm conditions)
  • 4-20mA linear output
  • Calibration including certification traceable to National Standards (NIST), CLAS 17025
  • Critical: Remote Push Purge Feature installed on each unit

• Rack Mount Back Plates (Qty: 2):

  • Size: 19"x5.25"

• Place of Performance: 10x10 Supersonic Wind Tunnel at the NASA Glenn Research Center in Cleveland, OH.

• Period of Performance: Testing may begin in 2026 and will be used for the lifetime of the unit as the primary dewpoint temperature measurement device(s) for the facility.

Solicitation / RFP / RFQ

This solicitation is a Request for Quotation (RFQ) for the procurement of MicroView Mini 6000 Hygrometers for the Supersonic Wind Tunnel at NASA Glenn Research Center in Cleveland, OH. This procurement is set aside for small businesses. The hygrometers are needed to accurately measure tunnel dewpoint temperature, which is critical for data quality.

• Supply four (4) hygrometers with the following capabilities:

  • Range: 5-6000 ppm(V)
  • Temperature-controlled silicon chip moisture sensor
  • Automated Push Purge system for fast response time
  • 4-20 mA linear output
  • NIST traceable calibration

• Contract type: Firm Fixed Priced (as indicated by clause 1852.216-78).

• Period of Performance: Testing may begin in 2026 and will be used for the lifetime of the unit.

• Delivery: FOB Destination.

• Quotes are due by 5/8/2026 at 4:00 p.m. CT to Laura Quave at laura.a.quave@nasa.gov.

• Contractual and technical questions must be submitted in writing (email) to Laura Quave by 5/6/2026 at 12:00 p.m. CT.

• Quotes must remain valid for 30 days.

• Quotes must include Cage Code & UEI #, ARO delivery time/Lead Time, and any applicable discounts.

• Evaluation Criteria: The contract will be awarded to the responsible Offeror whose offer conforming to the solicitation is the lowest price technically acceptable (LPTA). Offers not deemed technically acceptable will be removed from consideration.

• This procurement is set aside for small business.

• Offerors must be registered at www.sam.gov.

• This solicitation incorporates various FAR and NFS clauses by reference, including those related to System for Award Management, Duty-Free Entry, Place of Manufacture, Personal Identity Verification, Government Property, and Export Licenses.

• The document references attachments for the Statement of Work and Redacted Brand Name Justification.

Statement of Work (SOW) / Performance Work Statement (PWS)

The primary objective is to measure tunnel dewpoint temperature to accurately correct test section operating conditions for the presence of water vapor, which is critical for data quality in the facility.

• Supply four hygrometers with specific capabilities:
  • Range: 5-6000 ppm(V)
  • Temperature-controlled silicon chip moisture sensor
  • Automated Push Purge system for fast response time
  • 4-20 mA linear output
  • NIST traceable calibration.

N/A (Specific performance metrics are not detailed beyond the required capabilities of the hygrometers).

• Place of Performance: 10x10 Supersonic Wind Tunnel at the NASA Glenn Research Center in Cleveland, OH.

• Period of Performance: Testing may begin with this hygrometer in 2026 and will be used for the lifetime of the unit as the primary dewpoint temperature measurement device.

• The hygrometers must meet the specified technical characteristics.

• NIST traceable calibration is required.

Solicitation / RFP / RFQ

This document is a Recommendation and Determination to solicit from one source or brand name for the acquisition of MicroView Mini 6000 Hygrometers from Stephens Analytical. The government is seeking to procure these specific hygrometers due to their unique characteristics.

• Acquisition of MicroView Mini 6000 Hygrometers.

• The units must be capable of measuring humidity levels of 5-6000 ppm(V) with NIST-traceable calibration.

• Must have a 4-20 mA output.

• Must include a remote-activated Push Purge feature with <1 min response time.

• The total estimated cost is to be determined (indicated as 'Enter Dollar amount').

• The estimated period of performance or lead-time for delivery is 9/11/2026.

• This document does not detail submission instructions or evaluation criteria, as it is a justification for a sole-source procurement.

• This is a sole-source recommendation, indicating no set-aside is planned.

• The justification highlights that Stephens Analytical's product offers a unique combination of accuracy, response time, and ease of use compared to other available options.

• Alternative solutions like flight-rated spectrometers are significantly more expensive (5x the cost).

• Other considered options like Vaisala sensors or chilled-mirror units were found to have accuracy limitations or maintenance issues.

• Using another vendor or brand could lead to excessive test time, inaccurate measurements, and increased Mach number errors for the facility and customers.