Document ID: chunk:federal_register_of_legislation:F2024L00446:front:0:p16
Version: federal_register_of_legislation:F2024L00446
Segment Type: other
Provision Reference: 
Character Range: 46965–50061

term "particulate" for the deposited matter.

              3.6.1. "Particle number emissions" (PN) means the total number of solid particles emitted from the vehicle exhaust quantified according to the dilution, sampling and measurement methods as specified in this Regulation.

              3.6.2. "Particulate matter emissions" (PM) means the mass of any particulate material from the vehicle exhaust quantified according to the dilution, sampling and measurement methods as specified in this Regulation.

              3.7. WLTC

              3.7.1. "Rated engine power" (Prated) means maximum net power of the engine or motor in kW as per the requirements of UN Regulation No. 85.

              3.7.2. "Maximum speed" (vmax) means the maximum speed of a vehicle as declared by the manufacturer. In the absence of a declaration, the maximum speed shall be determined according to UN Regulation No. 68.

              3.8. Procedure

              3.8.1. "Periodically regenerating system" means an exhaust emissions control device (e.g. catalytic converter, particulate trap) that requires a periodical regeneration.

              3.9. Evaporative emissions

3.9.1. "Fuel tank system" means the devices which allow storing the fuel, comprising the fuel tank, the fuel filler, the filler cap and the fuel pump when it is fitted in or on the fuel tank.
3.9.2. "Fuel system" means the components which store or transport fuel on board the vehicle and comprise the fuel tank system, all fuel and vapour lines, any non-tank mounted fuel pumps and the activated carbon canister.
3.9.3. "Butane working capacity" (BWC) means the mass of butane which a carbon canister can adsorb.
3.9.4. "BWC300" means the butane working capacity after 300 cycles of fuel ageing cycles experienced.
3.9.5. "Permeability Factor" (PF) means the factor determined from hydrocarbon losses over a period of time and used to determine the final evaporative emissions.
3.9.6. "Monolayer non-metal tank" means a fuel tank constructed with a single layer of non-metal material including fluorinated/sulfonated materials.
3.9.7. "Multilayer tank" means a fuel tank constructed with at least two different layered materials, one of which is a hydrocarbon barrier material.
3.9.8. "Sealed fuel tank system" means a fuel tank system where the fuel vapours do not vent during parking over the 24-hour diurnal cycle defined in paragraph 6.5.9. of Annex C3 when performed with the applicable reference fuel defined in paragraph 7 of Annex B3.
3.9.9. "Evaporative emissions" means in the context of this Regulation the hydrocarbon vapours lost from the fuel system of a motor vehicle during parking and immediately before refuelling of a sealed fuel tank.
3.9.10. "Depressurisation puff loss" means hydrocarbons venting from a sealed fuel tank system pressure relief exclusively through the carbon canister allowed by the system.
3.9.11. "Depressurisation puff loss overflow" are the depressurisation puff loss hydrocarbons that pass through the carbon canister during depressurisation.
3.9.12. "Fuel tank relief pressure" is the