UNSPSC 42183506: Tachistoscope accessories

In this classification, this commodity indicates a product that is either an accessory or consumable associated with tachistoscopes. Most nations, for tariff and trade purposes, schedule these products under HS 900630.

UNSPSC 42183506 Tachistoscope accessories, a Commodity code, does not reflect the actual work state and local governments are buying under this code. The recent solicitations tagged to it—precision high-voltage test equipment modules, spectrophotometers, and law enforcement equipment—span utility infrastructure diagnostics, water quality analysis, and public safety procurement, none of which align with the code's nominal scope of tachistoscope (visual perception testing) accessories. The code shows little relevant recent activity in state and local procurement.

The three opportunities in the block represent distinct issuing bodies and geographies: Kissimmee Utility Authority (IFB 26046JG, September 2026) sought a precision high-voltage capacitance and power/dissipation factor measurement module for less than $250,000; the City of Tampa issued an RFQ (26P00372, June 2026) for a Heck DR4900 Spectrophotometer replacement at its McKay Bay Waste to Energy facility; and Sourcewell, on behalf of participating Washington county governments and nationwide public entities, issued a broad RFP (061626, June 2026) for law enforcement equipment. The mismatch between the code name and the procurement activity suggests either tagging error in the source data or that the code is used as a catch-all for specialized measurement and testing equipment outside its stated category definition. Business development professionals should verify the actual commodity or service classification before pursuing opportunities flagged under this code.