UNSPSC 60104820: Kundt apparatus

An apparatus for experiment in which a bar is vibrated vertically and its wave length is measured through resonance in the glass tube with a view to measuring the velocity of sound in the solid, liquid and air.

UNSPSC 60104820 Kundt apparatus is a Commodity code that nominally denotes physics laboratory demonstration equipment, but recent state and local solicitation activity tagged to this code shows no alignment with that scope. The recent opportunities in the source — covering reading and video materials for school districts, anorthosite highlands simulant for educational pathways programs, STEM and career readiness kits, and general science supplies — are educational materials and consumables rather than Kundt apparatus or specialized physics demonstration instruments. State and local procurement offices appear to be misclassifying teaching materials and instructional supplies under this code rather than routing them through codes aligned with general educational equipment and supplies.

The geographic activity is concentrated in Texas school districts (Harlingen Consolidated ISD, Katy ISD), with secondary activity in Arizona (Cartwright Elementary School District No. 83 serving the SAVE consortium), Georgia (Cobb County School District), and Florida (Seminole County School Board). Recent solicitations include Katy ISD's RFP #2428KD-A for teaching and instructional materials with a contract term through October 22, 2027 and renewal options through 2030 (response deadline May 29, 2026); Cartwright Elementary's RFP 260331 on behalf of SAVE for STEM and College & Career Readiness Kits with estimated annual usage of $1,346,000 across participating districts (response deadline June 8, 2026); and Cobb County School District's IFB B26128 for science supplies with estimated annual expenditure of $175,000 (response deadline June 16, 2026). The code shows little relevance to actual Kundt apparatus procurement.