Q90. Does EPA accept thermal flow meters for measuring volumetric flow rate under 98.34?

A90.  The MRR does not specify equipment type but rather lists standard methods used to quality assure fuel flow meters. Any fuel flow meter that can be calibrated based on one of the methods specified in §98.3(i) is acceptable (see §98.33(a)(3)(ii) and (iii)). The calibration may be conducted by the reporter or an independent third party so long as the standard method is adhered to and the calibration does not deviate from the method.