C04a Specifications Document 1232SA26Q0619.pdf
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- Automated Titrator (Brand Name or Equal) Federal contract opportunity
- Solicitation number
- 1232SA26Q0619
About this file
This is a federal contract requirement document for an automated titrator system dated 05/07/2026. The United States Department of Agriculture (USDA) seeks an automated potentiometric titrator designed for routine acidity analysis of fruit juice and coffee samples. The system must perform walk-away, unattended titrations with automated reagent dosing, pH endpoint detection, and full sample sequencing without operator intervention. The required system includes an autosampler with capacity for at least 5 samples, automated rinsing and electrode cleaning between samples, a food-optimized pH electrode, and all necessary components for immediate operation including the titrator unit, titrant pump, rinse/cleaning unit, tubing, electrolyte solution, reagent bottle, drying tube, and electrode holder.
The titrator must meet specific analytical and operational requirements: store approximately 2–5 user-defined methods including routine acidity endpoints, achieve repeatability with relative standard deviation of ≤1%, and support simple data export in CSV format without requiring audit trail, GLP mode, or regulatory compliance features. Vendor-provided installation and setup is included to ensure proper system functionality. The equipment should be shipped to 64 Nowelo Street, Hilo, HI 96720. Technical inquiries should be directed to Peishih Liang, the USDA technical point of contact, at Peishih.liang@usda.gov or 808-959-4349.
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Text version
05/07/2026
Requirement Title and Brief Description: Automated titrator for routine acidity analysis; The titrator should perform precise, walk‑away acidity titrations for routine analysis of fruit juice and coffee samples. It should automatically dose reagents, detect pH endpoints, and run full sample sequences without operator intervention, ensuring consistent results and efficient throughput.
Technical point of contact: Peishih Liang, Peishih.liang@usda.gov, 808-959-4349
Shipping address: 64 Nowelo Street, Hilo, HI 96720
Detailed specifications and salient characteristics:
• Potentiometric titration capability: Performs automated potentiometric titrations with pH endpoint detection suitable for routine acidity analysis of fruit juice and coffee samples.
• Method storage: Stores approximately 2–5 user defined methods, including routine acidity endpoints.
• Autosampler capacity: Includes an autosampler accommodating at least 5 samples, enabling walk away, unattended operation for routine workflows.
• Automated cleaning: Provides automated rinsing and electrode cleaning between samples to maintain measurement consistency and reduce operator workload.
• Food optimized pH electrode: Supplied with a pH electrode appropriate for food and beverage matrices, ensuring stable and reproducible acidity measurements.
• Analytical performance: Achieves repeatability with relative standard deviation (RSD)
≤1% for routine titrations.
• Data export: Supports simple data transfer (e.g., CSV export). No audit trail, GLP mode, or regulatory compliance features are required.
• Complete operational package: System includes all components necessary for installation and immediate operation: titrator unit, autosampler, titrant pump, rinse/cleaning unit, tubing, pH electrode, electrolyte solution, reagent bottle, drying tube, and electrode holder.
• Installation and setup: Vendor provided installation is included to ensure proper setup and verification of system functionality.
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