Description
The CDC is issuing a sole‑source, firm‑fixed‑price purchase order to TSI Incorporated for the repair and calibration of three Aerodynamic Particle Sizers that are government‑owned. The work must be completed off‑site at TSI’s facility in Shoreview, MN, with a turnaround of 21 days after receipt of the instruments. Calibration requirements include achieving a flow rate of 5 L/min, maintaining performance despite pressure drops, and delivering precise number‑size distributions from 0.37 µm to 20 µm using proprietary time‑of‑flight and optical technology. The government will provide the three instruments; TSI will return the calibrated units to the CDC/NIOSH PMRD point of contact.
• Repair and calibrate 3 Aerodynamic Particle Sizers (serials 1169, 1203, 72321006)
• Achieve and maintain 5 L/min flow rate (1 L/min sample, 4 L/min sheath)
• Calibrate for 0.37‑20 µm aerodynamic diameter with ≤2 % deviation (AQL)
• Complete work within 21 days of instrument receipt
• Deliver calibrated instruments back to CDC/NIOSH PMRD by 30 Sep 2026 (start of performance period)
• Contract period: 30 Sep 2026 – 30 Nov 2026 (2 months)