UNSPSC 41181606: Ouchterlony agar plate

In this classification, Ouchterlony agar plate connotes a device containing an agar gel used to examine antigen-antibody reactions. In immunodiffusion, antibodies and antigens migrate toward each other through gel which originally contained neither of these reagents. As the reagents come in contact with each other, they combine to form a precipitate that is trapped in the gel matrix and is immobilized. US FDA regulates Ouchterlony agar plate under 21 CFR 866.4600 and under FDA product code JZP.

UNSPSC 41181606 Ouchterlony agar plate is a Commodity code that designates specialized microbiological culture media and laboratory supplies. State and local governments procure this code for bacteriological testing, water quality analysis, and clinical laboratory operations. The recent opportunities in the block show minimal direct purchasing activity under this specific code; instead, state and local issuing bodies are acquiring related laboratory analytical equipment, reagents, and diagnostic systems for public health and environmental testing.

Recent solicitation activity reveals that Mississippi State University, the Texas Health and Human Services Commission, the State of Oregon, and various county health departments are actively procuring laboratory supplies and equipment for water testing, microbiology analysis, and environmental monitoring. The Texas Health and Human Services Commission's July 2026 RFQ for COLILERT reagents and water bottles for bacteriological testing represents the most directly relevant recent opportunity, seeking IDEXX-manufactured products for the South Texas Laboratory's approximately 1,000 monthly samples across eight counties, with historical annual spend ranging from $70,050 to $90,000 in fiscal year 2025. Mississippi State University has issued multiple sole-source notices for specialized laboratory instrumentation (chromatography systems, spectrometers, analyzers) that integrate with existing testing workflows. Activity spans Mississippi, Texas, Oregon, Florida, and other states where public health and research laboratories maintain ongoing procurement for diagnostic reagents, culture media, and associated testing supplies. The issuing bodies include state health departments, university research facilities, county health agencies, and special districts—primarily public entities responsible for environmental monitoring, drinking water certification, and clinical laboratory operations.