Document ID: chunk:federal_register_of_legislation:F2012C00283:front:0:p27
Version: federal_register_of_legislation:F2012C00283
Segment Type: other
Provision Reference: 
Character Range: 82863–86493

approximate hose length shall be tested. Whether non-identical vapour/liquid separators are acceptable is decided by the Technical Service responsible for the type approval tests.
              7.2.1.4. The fuel tank volume is within a range of ±10 per cent.
              7.2.1.5. The setting of the fuel tank relief valve is identical.
              7.2.1.6. The method of storage of the fuel vapour is identical, i.e. trap form and volume, storage medium, air cleaner (if used for evaporative emission control), etc.
              7.2.1.7. The method of purging the stored vapour is identical (e.g. air flow, start point or purge volume over the preconditioning cycle).
              7.2.1.8. The method of sealing and venting the fuel metering system is identical.
              7.2.2.  The type approval shall be extended to vehicles with:
              7.2.2.1. Different engine sizes;
              7.2.2.2. Different engine powers;
              7.2.2.3. Automatic and manual gearboxes;
              7.2.2.4. Two and four wheel transmissions;
              7.2.2.5. Different body styles; and
              7.2.2.6. Different wheel and tyre sizes.
              7.3.  Extensions for durability of pollution control devices (Type V test)
              7.3.1.  The type approval shall be extended to different vehicle types, provided that the vehicle, engine or pollution control system parameters specified below are identical or remain within the prescribed tolerances:
              7.3.1.1. Vehicle:
                Inertia category: the two inertia categories immediately above and any inertia category below.
                Total road load at 80 km/h: +5 per cent above and any value below.
              7.3.1.2. Engine
                   (a) Engine cylinder capacity (15 per cent);
                   (b) Number and control of valves;
                   (c) Fuel system;
                   (d) Type of cooling system;
                   (e) Combustion process.
              7.3.1.3. Pollution control system parameters:
                   (a) Catalytic converters and particulate filters:
                    (i) Number of catalytic converters, filters and elements;
                    (ii) Size of catalytic converters and filters (volume of monolith   ±10 per cent);
                    (iii) Type of catalytic activity (oxidizing, three-way, lean NOx trap,   SCR, lean NOx catalyst or other);
                    (iv) Precious metal load (identical or higher);
                    (v) Precious metal type and ratio (±15 per cent);
                    (vi) Substrate (structure and material);
                    (vii) Cell density;
                   (viii) Temperature variation of no more than 50 K at the inlet of the  catalytic converter or filter. This temperature variation shall               be checked under stabilized conditions at a speed of 120 km/h               and the load setting of the Type I test.
                   (b) Air injection:
                  (i) With or without;

                  (ii) Type (pulsair, air pumps, other(s)).
                (c) EGR:
                  (i) With or without;
                  (ii) Type (cooled or non cooled, active or passive control, high                 pressure or low pressure).
              7.3.1.4. The durability test may be carried out using a vehicle, which has a different body style, gear box (automatic or manual) and size of the wheels or tyres, from those of the vehicle type for which the type approval is sought.
              7.4.  Extensions for on-board diagnostics
              7.4.1.  The type approval shall be extended to