UNSPSC 12141900: Non metals and pure and elemental gases

UNSPSC 12141900 Non metals and pure and elemental gases is a Class code covering chemical gases, calibration standards, and specialized chemical products that state and local governments procure for wastewater treatment, environmental monitoring, and facility operations. The code encompasses liquid polymers for biosolids dewatering at correctional-facility treatment plants, EPA-protocol calibration and audit gases for emissions monitoring systems, and other industrial chemical supplies. Issuing bodies are diverse — state environmental services agencies, county public-works departments, and special-purpose facilities — with no single dominant repeat buyer in recent activity. The work is typically solicited through competitive sealed bids or invitations to bid, often with five-year or multi-year usage agreements and fixed pricing structures.

Recent opportunities span Maryland, California, and Washington. Maryland Environmental Service posted a sealed-bid solicitation (1272155, due November 16, 2026) for liquid emulsion polymer delivery to support wastewater treatment at Maryland Correctional Institution. The County of Orange, California, OC Public Works, issued a competitive bid (0803068001RE, due August 10, 2026) for EPA Protocol Calibration and Audit Gases — 13 line items of EPA-traceable gas mixtures in cylinders delivered to the County's Central Utility Facility to support a cogeneration gas turbine CEMS under South Coast Air Quality Management District emissions requirements, structured as a five-year fixed-price usage agreement with a 5% local-small-business and DVBE price preference and a cooperative purchasing option for other municipalities. Response deadlines and posting activity suggest moderate but geographically scattered procurement velocity, with no indication of concentrated or seasonal patterns in the recent record.