UNSPSC 31241808: Dichroic filter

A dichroic filter or thin-film filter is a very accurate color filter used to selectively pass light of a small range of colors while reflecting other colors

UNSPSC 31241808 Dichroic filter is a Commodity code covering optical filtering and light-management components used in microscopy, laboratory instrumentation, and optical systems. State and local governments procure dichroic filters as part of broader microscopy and laboratory equipment acquisitions, typically bundled with complete optical systems, microscope assemblies, and supplementary accessories. Issuing bodies include state education and laboratory agencies, school districts, and county or city educational institutions that operate testing, research, or teaching laboratories. The filters are specified as performance-critical components within larger equipment purchases rather than as standalone line items, and vendors compete as part of broader microscope and accessories supply contracts.

Texas and Michigan show recent activity under this code. The Texas Comptroller of Public Accounts is soliciting microscopes and accessories through the Texas Cooperative Purchasing Network (TCPN) indefinite-quantity agreement (Solicitation 304T27490M2, responses due September 1, 2026), with pricing firm fixed and participation open to all qualifying Texas state and local agencies; respondents must provide unit pricing, warranty terms, insurance documentation, and certifications supporting Texas vendor, service-disabled veteran, and environmentally sensitive product preferences. The State of Michigan posted a Notice of Intent for RFP 250000002612 (posted July 27, 2026, notice-of-intent deadline July 31, 2026) regarding optical lenses and frames, though the underlying RFP scope, contract value, and evaluation criteria are not disclosed in the source material; interested vendors should access Michigan's procurement system for complete solicitation details.