Calibration and Auditing Procedures
MiniVol™ Flow Rate Performance Audit Using a MiniFlo Transfer Standard
The following presents audit procedures specific to the MiniVol™ sampler which is designed to operate at an actual total flow of 5.0 L/min, and the MiniFlo transfer standard calibrated over the appropriate flow range.

Since the accurate measurement of PM10/PM2.5 mass concentration is dependent upon flow rates under actual conditions, the audit must also be conducted in terms of actual conditions.