CCR Process Products owns and maintains the latest state-of-the-art equipment used to generate and measure gas flow rates in the range of less than 1 sccm Nitrogen up to 400 slm Nitrogen with an uncertainty of up to 0.2% of the flow. With this equipment, we can calibrate devices manufactured by most companies such as mass flow controllers (MFC), mass flow meters (MFM), rotameters, and variable area flow meters.