Calibration Services


F&J has a state-of-the-art calibration laboratory. Utilizing precision laminar flow elements, computer-controlled reference instruments, and computer-controlled flow sources, F&J can provide highly-accurate, repeatable, flow calibrations. We can calibrate many air samplers and air flow calibrators, even if they aren't an F&J product. Reference instruments are calibrated by the OEM and traceable to N.I.S.T. (National Institute of Standards and Technology). Complete documentation with 'As Found' and 'As Left' data are maintained by F&J and the OEM.

Documented procedures are used to calibrate both new and in-service equipment. Procedures are controlled using an ISO 9001-2000 compliant document control system as part of our Quality Program.

'As Received' or 'As Found' data is obtained on all instruments returned to F&J for recalibration unless a mechanical or electronic problem with the instrument prevents the obtaining of that data.

F&J can calibrate its digital airflow calibrators and digital air samplers to four different reference standards. These four standards are:

  • Classical Standard Temperature and Pressure (STP): 0°C, 760mmHg
  • Normal Temperature and Pressure (NTP): 20°C, 760mmHg
  • Standard Ambient Temperature and Pressure (SATP): 25°C, 760mmHg
  • Modified Normal Temperature and Pressure (MNTP): 70°F, 1 ATM

Calibration of airflow instruments to the proper reference standard facilitates the users ability to comply with a specific regulatory reference standard and allows airflow measurements to be comparable at the same T and P so as to ensure proper comparisons of volumes and flowrates among different sample locations and among different sampling periods.

Flow Verification - Customers can be assured that calibrations performed at our facility are accurate. Several times a year, F&J will calibrate a few products and send those products to an independent flow calibration laboratory. The independent laboratory performs a comparison of the flow rate of F&J products versus a highly accurate primary flow standard.

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