Automated Titrator (Brand Name or Equal)

The Department of Agriculture Agricultural Research Service seeks an automated potentiometric titrator (brand name or equal) for routine acidity analysis, with quotations due August 4, 2026. This is an unrestricted procurement with no small-business set-aside; all responsible sources may submit.

Place of performance is Hilo, Hawaii (64 Nowelo Street, Hilo, HI 96720). The NAICS code is 334516, Analytical Laboratory Instrument Manufacturing; PSC is 6640, Laboratory Equipment and Supplies. Small-business size standard is 1,000 employees.

The titrator must perform walk-away, unattended titrations with potentiometric capability, automated reagent dosing, pH endpoint detection, and full sample sequence execution without operator intervention. The system must include an autosampler with capacity for at least 5 samples, automated rinsing and electrode cleaning between samples, a food-optimized pH electrode, and all bundled components (titrator unit, titrant pump, rinse/cleaning unit, tubing, electrolyte solution, reagent bottle, drying tube, electrode holder). The equipment must achieve 1% relative standard deviation repeatability and support storage of 2–5 user-defined methods. Vendors must establish clear traceability to the original equipment manufacturer or authorized distributor, provide a Certificate of Conformance per FAR 52.246-15, and complete the Buy American Certificate. Delivery is required 60 days after award. Evaluation follows lowest-price-technically-acceptable criteria, with technical acceptability determined by meeting all specified requirements and availability within the delivery timeframe. All pricing must include shipping and delivery fees. Questions are due 3 days prior to closing (by August 1, 2026) to Shane Pope at 970-851-3735. The requisition number is 1170761, with anticipated firm fixed-price award.