ANNEX I

DEFINITIONS, APPLICATION FOR TYPE APPROVAL AND TEST SPECIFICATIONS 1. DEFINITIONS 1.1. Vehicle type with regard to the limitation of the emission of gaseous pollutants from the engine "Vehicle type with regard to the limitation of the emission of gaseous pollutants from the engine" means vehicles which do not differ in essential respects, in particular as regards the following points: 1.1.1. The equivalent inertia determined in relation to the reference weight, as laid down in item 4.2 of Annex III; 1.1.2. The engine characteristics as defined in items 1-6 and 8 of Annex II. 1.2. Reference weight "Reference weight" means the weight of the vehicle in running order, increased by a uniform weight of 120 kg. The weight of the vehicle in running order is its total unladen weight with all tanks full-with the exception of the fuel tank, which must only be half full-and a set of tools and the spare wheel on board. 1.3. Engine crankcase "Engine crankcase" means the spaces in or external to an engine which are connected to the oil sump by internal or external ducts through which gases and vapours can escape. 1.4. Gaseous pollutants "Gaseous pollutants" means carbon monoxide and hydrocarbons. 1.5. Maximum weight "Maximum weight" means the technically permissible maximum weight declared by the vehicle manufacturer (this weight may be greater than the permissible maximum weight). 2. APPLICATION FOR TYPE APPROVAL 2.1. The following particulars must be submitted by the manufacturer or his authorised representative: 2.1.1. A description of the engine type, including all the particulars referred to in Annex II; 2.1.2. Drawings of the combustion chamber and of the piston, including the piston rings; 2.1.3. Maximum lifts of valves and angles of opening and closing in relation to dead centres. 2.2. A vehicle representative of the vehicle type to be approved shall be submitted to the technical service conducting the tests referred to in item 3. 3. TEST SPECIFICATIONS 3.1. General The components liable to affect the emission of gaseous pollutants shall be so designed, constructed and assembled as to enable the vehicle, in normal use, despite the vibration to which it may be subjected, to comply with the requirements of this Directive. 3.2. Description of tests 3.2.1. The vehicle shall be subjected, according to its weight category, to Types I, II and III tests, as specified below: 3.2.2.1. Type I test (verifying the average emission of gaseous pollutants in a congested urban area after a cold start). 3.2.1.1.1. This test shall be carried out on all vehicles referred to in Article 1 whose maximum weight does not exceed 3 7 5 metric tons. 3.2.1.1.2. The vehicle shall be placed on a dynamometer bench equipped with a brake and a flywheel. A test lasting a total of thirteen minutes and comprising four cycles shall be carried out without interruption. Each cycle shall comprise 15 phases (idling, acceleration, steady speed, deceleration, etc.). During the test the exhaust gases shall be collected in one or more bags. The gases shall be analysed and their volume measured at the end of the filling period. 3.2.1.1.3. The test shall be carried out by the procedure described in Annex III. The methods used to collect and analyse the gases shall be those laid down. Other methods may be approved if it is found that they yield equivalent results. 3.2.1.1.4. The mass of the carbon monoxide and the mass of the hydrocarbons obtained in the test must be less, for a vehicle of given reference weight, than the amounts shown in the table below: >PIC FILE= "T0002121"> 3.2.1.2. Type II test (carbon-monoxide emission test at idling speed). 3.2.1.2.1. This test shall be carried out on all vehicles referred to in Article 1. 3.2.1.2.2. The carbon-monoxide content by volume of the exhaust gases emitted with the enging at idling speed must not exceed 4 7 5 %. 3.2.1.2.3. This content shall be checked through a test carried out in accordance with the procedure described in Annex IV. 3.2.1.3. Type III test (verifying emissions of crankcase gases). 3.2.1.3.1. This test shall be carried out on all vehicles referred to in Article 1 with the exception of those having a two-stroke engine with compression in the crankcase. 3.2.1.3.2. The mass of the hydrocarbons contained in the crankcase gases which are not recycled by the engine must be less than 0 7 15 % of the mass of the fuel consumed by the engine. 3.2.1.3.3. This mass shall be checked through a test carried out in accordance with the procedure described in Annex V. 3.2.2. As a general rule conformity of production models, with regard to limitation of the emission of gaseous pollutants from the engine, shall be verified on the basis of the description in the communication given in Annex VII and, where necessary, of all or some of the tests of Types I, II and III referred to in item 3.2. However: 3.2.2.1. In a Type I test carried out on a vehicle taken from the series the collected mass of the carbon monoxide and the collected mass of the hydrocarbons shall not exceed the values for L1 and L2 respectively given in the following table: >PIC FILE= "T0002122">

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Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.