(a) Application. You may use an intake-air flow meter in combinationwith a chemical balance of fuel, inletair, and exhaust to calculate raw exhaustflow as described in § 1065.655(e)and (f), as follows:
CFR 40-1065.225-2014 history
2014CFR 40-1065.225-2014 Protection of Environment. Part1065:Engine-testing procedures. Section1065.225:Intake-air flow meter.