UNSPSC 12161702: Bicarbonate buffers

UNSPSC 12161702 Bicarbonate buffers is a Commodity code encompassing pH buffer solutions and related calibration chemicals used by state and local governments to maintain and calibrate water quality monitoring equipment. The City of Austin, Texas solicited under this code for buffer solutions (pH 7.00, 10.00, and 4.01), conductivity standards, ultra-pure deionized water, pH reference solution, redox buffer, and sensor storage solution needed to service Hydrolab and In-Situ Sondes that measure pH, turbidity, conductivity, temperature, and dissolved oxygen in municipal water systems. This code reflects state and local procurement of chemical consumables for environmental and utility operations, not abstract chemical taxonomy. Issuing bodies soliciting under this code are municipal utilities and environmental departments managing water quality monitoring networks; the City of Austin appears as a representative recent buyer.

The most recent documented opportunity under this code is the City of Austin's IFB 6300 BYS1059, posted July 13, 2026 with bids due August 13, 2026, for chemicals to maintain Hydrolab and In-Situ Sondes. The solicitation applies both Small Business Preference and Local Business Preference programs (the latter limited to entities headquartered in Bastrop, Caldwell, Hays, Travis, or Williamson counties). Pricing is all-inclusive of shipping to the Austin area, administrative fees, overhead, and labor. The City does not guarantee purchase volumes and orders as-needed based on historical usage. Mandatory insurance includes Workers' Compensation and Employers' Liability ($100,000 per accident / $500,000 by disease), Commercial General Liability ($500,000 per occurrence), and Business Automobile Liability ($500,000 combined single limit). All contractors must certify compliance with the City of Austin Wage Theft Ordinance and complete mandatory wage theft training within 30 days of award. Contact procurement specialist Brenita Wilkison for IFB 6300 BYS1059. Geographic data is limited; the source documents only Texas activity.