Amendment 01 - The purpose of this amendment is to change the RFQ close date from 8/07/2026 to 8/12/2026. All other terms and conditions are unchanged. Please the attachments for this Request for Quot... Amendment 01 - The purpose of this amendment is to change the RFQ close date from 8/07/2026 to 8/12/2026. All other terms and conditions are unchanged. Please the attachments for this Request for Quote: 1. Attachment A - Request for Quote 2. Attachment B - Specifications document 3. Attachment C - Provisions and Clauses

The National Institute of Standards and Technology (NIST) is seeking information from industry sources to determine the availability of thermally insulating rectangular waveguides for use in power measurement systems at its Boulder, Colorado site. This is a market research notice only, not a solicitation, and responses are due by July 17, 2026. NIST anticipates that delivery, installation, and training will occur within 16 weeks after receipt of an order. No specific budget amount is mentioned in the notice. The performance location is the NIST Boulder site.