Document ID: chunk:federal_register_of_legislation:F2024L00447:front:0:p8
Version: federal_register_of_legislation:F2024L00447
Segment Type: other
Provision Reference: 
Character Range: 22856–25964

share a similar tube inner diameter and function on an identical principle to determine the mass flow rate of the exhaust gas.

              3.2.27. "Verification" means the process of evaluating whether the measured or calculated output of an analyser, flow-measuring instrument, sensor or signal or method agrees with a reference signal or value within one or more predetermined thresholds for acceptance.

              3.2.28. "Zero" means the calibration of an analyser, flow-measuring instrument or sensor so that it gives an accurate response to a zero signal.

              3.2.29. "Zero gas" means a gas containing no analyte, which is used to set a zero response on an analyser.

              3.2.30. "Zero response" means the mean response to a zero signal over a time interval of at least 30 seconds.

              3.2.31. "Zero response drift" means the difference between the mean response to a zero signal and the actual zero signal that is measured over a defined time period after an analyser, flow-measuring instrument or sensor has been accurately zero calibrated.

              Figure 1
              Definition of accuracy, precision and reference value

    Figure 2
    Definition of delay, rise, transformation and response times

              3.3. Vehicle characteristics and driver

              3.3.1. "Actual mass of the vehicle" means the mass in running order plus the mass of the fitted optional equipment to an individual vehicle.

              3.3.2. "Auxiliary devices" means energy consuming, converting, storing or supplying non-peripheral devices or systems which are installed in the vehicle for purposes other than the propulsion of the vehicle and are therefore not considered to be part of the powertrain.

              3.3.3. "Mass in running order" means the mass of the vehicle, with its fuel tank(s) filled to at least 90 per cent of its or their capacity/capacities, including the mass of the driver, fuel and liquids, fitted with the standard equipment in accordance with the manufacturer's specifications and, when they are fitted, the mass of the bodywork, the cabin, the coupling and the spare wheel(s) as well as the tools.

              3.3.4. "Maximum Permissible Test mass of the vehicle" means the sum of:

              (a) The actual mass of the vehicle; and

                  (b) 90 per cent of the difference between the technically permissible maximum laden mass and the actual mass of the vehicle (Figure 3).

              3.3.5. "Odometer" means an instrument indicating to the driver the total distance driven by the vehicle since its production.

              3.3.6. "Optional equipment" means all the features not included in the standard equipment which are fitted to a vehicle under the responsibility of the manufacturer, and that can be ordered by the customer.

              3.3.7. "Power-to-test-mass-ratio" corresponds to the ratio of the rated engine power of the internal combustion engine over the test mass of the tested vehicle as defined in paragraph 8.3.1.

              3.3.8. "Power-to-mass-ratio" is the ratio