Inactive Total Small Business Set-Aside (FAR 19.5)

Amendment I - The purpose of amendment I is to extend the solicitation due date FROM: 8/31/2023 TO: 9/8/2023; & Delete specification #20 "Measurement of zero-crossing temperature of cavity spacer with... Amendment I - The purpose of amendment I is to extend the solicitation due date FROM: 8/31/2023 TO: 9/8/2023; & Delete specification #20 "Measurement of zero-crossing temperature of cavity spacer with test report" All other terms and conditions remain unchanged, as a result of this amendment. COMBINED SYNOPSIS/SOLICITATION 1333ND23QNB640569 Stable Optical Reference Cavity Instruments This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6- Streamlined Procedures for Evaluation and Solicitation for Commercial Items, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotations are being requested, and a separate written solicitation document will not be issued. This solicitation is being issued under the authority of FAR Part 13, Simplified Acquisition Procedures. This is solicitation is a Request for Quotation (RFQ). The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 2023-04 effective 6/2/2023. The associated North American Industrial Classification System (NAICS) code for this procurement is 334516 – Analytical Laboratory Instrument Manufacturing with a small business size standard of 1,000 employees. This acquisition will be solicited as a Total Small Business Set-Aside. The Optical measurements Group (OMG) within the Material Measurements Laboratory (MML)requires two (2) stable optical reference cavities for integration into home-build cavity ring-down spectrometers that operate at two laser wavelengths: 1572 nm and 2000 nm, respectively. The spectrometer will perform precision molecular spectroscopy on pure and dilute gas-phase samples of carbon dioxide (CO2) in order to determine accurate and precise stable carbon isotope ratios, 13C/12C. The request will support the Isotopic Composition and Precision Molecular Spectroscopy project within OMG. (The purpose of the project is to link spectroscopic measurements of isotopic composition for greenhouse gases and other constituents of planetary atmospheres to the international system of units (SI) through benchmarked quantum chemistry calculations of transition intensities.