The Department of Defense, specifically the U.S. Army Contracting Command-Redstone, is seeking information from potential vendors regarding the procurement of a Mercury Triple Point Maintainer system, which is essential for calibrating Standard Platinum Resistance Thermometers (SPRT) in accordance with the International Temperature Scale of 1990 (ITS-90). The required system includes the ITL-M-17725 Mercury Triple Point Apparatus, the ITL-M-17724 Primary Mercury Cell, and UKAS-HG-P Premium Certification, all of which will be delivered to the Army Precision Standards Laboratory at Redstone Arsenal, Alabama. This procurement is critical for maintaining high standards in thermometry calibration, which is vital for the Army's operational requirements. Interested vendors are encouraged to submit a white paper by April 9, 2025, detailing their capabilities and relevant company information, with submissions sent via email to the designated contacts, Taylor Siskoff and Lisa Armes.