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The COMMERCE, DEPARTMENT OF | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY has issued a Tender notice for the procurement of a Amendment 2 to Solicitation for Ultrahigh Vacuum Sample Backout Chamber Extension of Time in the USA. This Tender notice was published on 24 Feb 2026 and is scheduled to close on 04 Mar 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 136470133, while the tender notice number is 1333ND26QNB030068 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Amendment 2 to Solicitation for Ultrahigh Vacuum Sample Backout Chamber Extension of Time
Deadline: 04 Mar 2026
Posting Date: 24 Feb 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 136470133
Document Ref. No.: 1333ND26QNB030068
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
AMENDMENT 2:
Extension of time 1 week from February 25, 2026 to new date for responses March 4, 2026.
AMENDMENT TO SOLICITATION FOR VENDOR QUESTIONS
Solicitation 1333ND26QNB030068 Ultra High Vacuum Sample Backout Chamber
Vendor Question 1:
To accurately provide a quote for the chamber and frame, I would need a drawing, STEP file, and/or sketch, as a written description alone is not sufficient for an accurate quote.
NIST Response:
There are many ways to design and assemble a system with the capabilities that we are requesting. We have not provided a technical drawing to allow the vendor the flexibility to design a system to meet our specifications as they see fit. We will evaluate on conformance to specifications, not a particular design.
Vendor Question 2:
Regarding Technical Specification b. “Partial pressure for masses 44 AMU:
NIST Response:
We will verify the stated specification with an RGA unit in our lab. Ultimately, this specification is to ensure that the UHV system is not contaminated with higher amu contaminants. The overall pressure is allowed to be 1e-8 Torr due to lower amu components (e.g. water) that we can more readily get rid of with a bake-out. We are not equipped to do the requisite UHV cleaning for higher mass contaminants (silicones, oils, etc.) so this requirement ensures the vendor provides us with a UHV-clean system.
Vendor Question 3:
Will a cylindrical chamber work rather than a cube or a sphere, so long as the volume requirements are met and there are enough ports?
NIST Response:
A cylindrical chamber with the same 12” opening dimensions would also suffice.
Vendor Question 4:
What is the geometry of the sample types to be going into the chamber? Is it like a wafer?
NIST Response:
We will be using this chamber on a variety of sample sizes and shapes.
As defined in the attached Combined Synopsis Solicitation, Statement of Work and applicable Clauses and Provisions.
Notice ID: 1333nd26qnb030068
Department/Ind. Agency: commerce, department of
Original Set Aside: total small business set-aside (far 19.5)
Sub-tier: national institute of standards and technology
Office: dept of commerce nist
Product Service Code: 6640 - laboratory equipment and supplies
NAICS Code: 334516 - Analytical Laboratory Instrument Manufacturing
Inactive Dates: mar 19, 2026
Inactive Policy: 15 days after date offers due
Documents
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Refer Document
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