Calibration and Auditing Procedures
Before a monitoring program is undertaken, all sampling and analysis equipment must be properly calibrated. Careful, accurate calibrations of sampling instrumentation and associated equipment provide the backbone for any monitoring network. Performing periodic audits is a way to ensure the integrity and assess the accuracy of sampling data.

The following presents calibration and auditing procedures specific to the MiniVol sampler, which is designed to operate at an actual total flow of 5.0 liters per minute (L/min), and the MiniFlo transfer standard, calibrated over the appropriate flow range.