UNSPSC 60104818: Planck constant apparatus

A device used to measure the Plank constant, the proportionality constant between energy of a photon and the frequency of its associated electromagnetic wave.

UNSPSC 60104818 Planck constant apparatus (Commodity) shows little relevant recent state and local procurement activity. The code's nominal scope—scientific apparatus for measuring fundamental physical constants—does not align with the recent opportunities posted under this code number. The opportunities actually solicited are instructional materials, science supplies, and educational equipment spanning reading materials, STEM kits, teaching supplies, and general science specimens for K-12 and higher education use.

The mismatch between the code's technical name and actual procurement activity suggests either a systematic tagging error in the source database or that this code has been repurposed to cover a much broader family of educational materials and consumables than its nominal definition would indicate. The recent opportunities cluster heavily among school districts in Texas, Georgia, and Florida—Harlingen Consolidated Independent School District (reading and video materials IFB, due October 1, 2026), Katy Independent School District (teaching and instructional materials RFP, due May 29, 2026), Cobb County School District in Georgia (science supplies IFB B26128, due June 16, 2026), Cartwright Elementary School District No. 83 in Arizona (STEM and college/career readiness kits RFP via the SAVE cooperative purchasing consortium, due June 8, 2026), and Seminole County Schools in Florida (anorthosite highlands simulant sole-source procurement, due June 9, 2026). Geographic spread spans Texas, Georgia, Arizona, and Florida, with the largest visible opportunity under the SAVE consortium purchasing vehicle serving multiple Arizona school districts, municipalities, counties, and higher education institutions with estimated annual usage of $1.35 million across participating members. None of these solicitations reference Planck constant apparatus or related physics instrumentation, raising questions about code assignment accuracy in the state and local procurement system.