Document ID: chunk:federal_register_of_legislation:F2024L00446:front:0:p9
Version: federal_register_of_legislation:F2024L00446
Segment Type: other
Provision Reference: 
Character Range: 26786–29739

use.

              3.1.13. "Total hydrocarbons" (THC) means all volatile compounds measurable by a flame ionization detector (FID).

              3.1.14. "Verification" means to evaluate whether or not a measurement system's outputs agrees with applied reference signals within one or more predetermined thresholds for acceptance.

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

              3.1.16. "Response time" means the difference in time between the change of the component to be measured at the reference point and a system response of 90 per cent of the final reading (t90) with the sampling probe being defined as the reference point, whereby the change of the measured component is at least 60 per cent full scale (FS) and takes place in less than 0.1 second. The system response time consists of the delay time to the system and of the rise time of the system.

              3.1.17. "Delay time" means the difference in time between the change of the component to be measured at the reference point and a system response of 10 per cent of the final reading (t10) with the sampling probe being defined as the reference point. For gaseous components, this is the transport time of the measured component from the sampling probe to the detector.

              3.1.18. "Rise time" means the difference in time between the 10 per cent and 90 per cent response of the final reading (t90 – t10).

       Figure 1
       Definition of accuracy, precision and reference value

              3.2. Road load and dynamometer setting

              3.2.1. "Aerodynamic drag" means the force opposing a vehicle's forward motion through air.

              3.2.2. "Aerodynamic stagnation point" means the point on the surface of a vehicle where wind velocity is equal to zero.

              3.2.3. "Anemometer blockage" means the effect on the anemometer measurement due to the presence of the vehicle where the apparent air speed is different than the vehicle speed combined with wind speed relative to the ground.

              3.2.4. "Constrained analysis" means the vehicle's frontal area and aerodynamic drag coefficient have been independently determined and those values shall be used in the equation of motion.

              3.2.5. "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.

              3.2.6. "Mass of the driver" means a mass rated at 75 kg located at the driver's seating reference point.

              3.2.7. "Maximum vehicle load" means the technically permissible maximum laden mass minus the