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[F1ANNEX I U.K. [F2SCOPE, DEFINITIONS, APPLICATION FOR EC TYPE-APPROVAL, GRANTING OF EC TYPE-APPROVAL, REQUIREMENTS AND TESTS, EXTENSION OF EC TYPE-APPROVAL, CONFORMITY OF PRODUCTION AND IN-SERVICE VEHICLES, ON-BOARD DIAGNOSTIC (OBD) SYSTEMS]

Textual Amendments

[F36. MODIFICATIONS OF THE TYPE AND AMENDMENTS TO APPROVALS] U.K.

6.2. Evaporative emissions (type IV test) U.K.

6.2.1. Approval granted to a vehicle type equipped with a control system for evaporative emissions may be extended under the following conditions: U.K.
6.2.1.1. The basic principle of fuel/air metering (e.g. single point injection, carburettor) must be the same. U.K.
6.2.1.2. The shape of the fuel tank and the material of the fuel tank and liquid fuel hoses must be identical. The worst-case family with regard to the cross-section and approximate hose length must be tested. Whether non-identical vapour/liquid separators are acceptable is decided by the technical service responsible for the type-approval tests. The fuel tank volume must be within a range of ± 10 %. The setting of the tank relief valve must be identical. U.K.
6.2.1.3. The method of storage of the fuel vapour must be identical, i.e. trap form and volume, storage medium, air cleaner (if used for evaporative emission control), etc. U.K.
6.2.1.4. The carburettor bowl fuel volume must be within a 10 millilitre range. U.K.
6.2.1.5. The method of purging of the stored vapour must be identical (e.g. air flow, start point or purge volume over driving cycle). U.K.
6.2.1.6. The method of sealing and venting of the fuel metering system must be identical. U.K.
6.2.2. Further notes: U.K.
(i)

different engine sizes are allowed;

(ii)

different engine powers are allowed;

(iii)

automatic and manual gearboxes, two and four wheel transmissions are allowed;

(iv)

different body styles are allowed;

(v)

different wheel and tyre sizes are allowed.]

Textual Amendments