40 CFR § 1065.320 - Fuel-flow calibration.

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§ 1065.320 Fuel-flow calibration.
Link to an amendment published at 88 FR 4674, Jan. 24, 2023.

(a) Calibrate fuel-flow meters upon initial installation. Follow the instrument manufacturer's instructions and use good engineering judgment to repeat the calibration.

(b) [Reserved]

(c) You may remove system components for off-site calibration. When installing a flow meter with an off-site calibration, we recommend that you consider the effects of the tubing configuration upstream and downstream of the flow meter. We recommend specifying calibration reference quantities that are NIST-traceable within 0.5% uncertainty.

[70 FR 40516, July 13, 2005, as amended at 86 FR 34541, June 29, 2021]