UNSPSC 12165300: Adsorbent

An adsorbent is an insoluble material coated by liquid on the surface, including capillaries and pores. A material is said to be adsorbent when it has the capacity to contain a definite amount of liquid in small chambers similar to a sponge

UNSPSC 12165300 Adsorbent, a Class code, encompasses absorbent and adsorbent materials that state and local governments procure for laboratory operations, water quality testing, environmental compliance, and facility maintenance. Recent solicitations show these jurisdictions acquiring activated carbon filters, deionized water system components, laboratory consumables for analytical testing, and related filtration supplies to support drinking water compliance, wastewater analysis, environmental monitoring, and microbial detection workflows. Issuing bodies include water utilities, environmental protection agencies, public health laboratories, county governments, and university research facilities, with repeat activity from Florida water departments and specialized laboratories supporting EPA-regulated testing. The code sees active procurement across water resource divisions, public health labs, and municipal utilities where filtration and absorbent materials are critical to regulatory compliance and sample analysis integrity.

Recent representative opportunities span multiple states. The City of St. Petersburg issued RFQ QUOTE26249 (July 24, 2026 response due) for an automated Biochemical Oxygen Demand analyzer and related system supplies for the Water Resources Department to support continuous compliance testing for Water Reclamation Facilities. Hillsborough County (Florida) announced sole-source procurement SS2600330 (July 14, 2026 challenge deadline) for deionized water system maintenance and replacement components, including MBR-1447 deionizer units and CAR-1252 carbon units valued at $76,530 over two years, critical for Type I water production in laboratory operations. The City of Santa Monica issued an Invitation to Bid for Microbial Source Tracking laboratory analysis services (June 9, 2026 deadline, posted July 1) requiring EPA-approved lab capabilities and associated sampling kits. The Oregon Health Authority's State Public Health Laboratory released ITB S-44300-00016250 (May 14, 2026 deadline, posted April 27) for a comprehensive environmental monitoring system with approximately 140 temperature sensors, humidity sensors, and integrated cloud-based software for CLIA and CAP compliance. Geographic concentration includes California, Florida, Colorado, Oregon, and Texas, with strong activity in states with significant water utility modernization and environmental compliance initiatives.