AP Buck VSS (validated sampling system) and Libra personal sampling pumps, available from Thomson Environmental Systems, are used for personal air sampling, area air sampling and occupational health studies with selectable flow range 0-18L.
Both pumps offer 1-hour recharge, interchangeable batteries for extended run times, ultra quiet easy operation, constant flow compensation, light weight, "auto-restart" after flow fault, high impact steel fibre filled case with antistatic and RFI shield and flow fault alarms. No tools are required to change flow rates.
The VSS range allows users to link a sample number, pump serial number, calibrator serial number and calibration date to prove a valid sample. Additionally the VSS pump automatically logs up to 10 days worth of history, can print direct to printer, is fully programmable and automatically corrects for temperature and pressure.
The Buck Libra is a low-cost, high-performance personal air sampling pump. Very large lapel samples may be collected over a set time period. Rugged casing protects internal component from harsh environments (dust, fibre and moisture).
The simple "set it and forget it" operation maintains contact flow (within 5%) using 37mm and 25mm cassettes. This ensures accurate sample volumes based on the run time.