UNSPSC 41113905: Permeability testing apparatus

UNSPSC 41113905 Permeability testing apparatus is a Commodity code under which state and local governments procure soil-testing and permeability-analysis equipment, particularly Proctor soil compactors with integrated soil analyzers and cone penetrometer test (CPT) sounding units for subsurface investigation and construction material verification. Recent solicitations show state departments of transportation, county utilities departments, and municipal engineering divisions acquiring specialized testing apparatus to support roadway construction, geotechnical site assessment, and infrastructure maintenance. The work spans both equipment procurement—a single truck-mounted CPT unit or Proctor compactor with soil analyzer—and integrated testing services bundled with apparatus rental or provision, where contractors supply equipment alongside labor and technical reporting. Issuing bodies include state transportation agencies, county purchasing departments serving utilities and public works functions, and municipal procurement offices overseeing construction projects.

Activity concentrates in the Southeast and Midwest, with recent opportunities originating in Texas, Florida, Georgia, and Michigan. The Texas Department of Transportation posted a bid (solicitation 601340000067218, due October 27, 2026) for a Proctor Soil Compactor with Soil Analyzer and related accessories. The Michigan Department of Transportation awarded a truck-mounted CPT sounding unit (RFP 260000002268) to Applied Research Associates, Inc. at $1,011,529.00 following a July 16, 2026 RFP deadline. The City of Augusta, Georgia requested geotechnical testing services including Modified Proctor testing (RFP 26-176, due September 11, 2026), and Henry County, Georgia issued an RFQ for on-call materials and field testing services including compaction and density testing (RFQ #27-08, due September 9, 2026). Additional representative work includes electrical insulating oil testing apparatus solicitations from Keys Energy Services (City of Key West, Florida) covering annual oil sampling and laboratory testing of power transformer units across two separate RFPs in September 2026, though those opportunities address diagnostic testing services rather than permeability apparatus per se.