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Video Output Graphics Processor. Bessel filter cut-off frequency. This implies tests, as described in section 4 of this Annex.
PDP volume flow rate at actual conditions. The NO x control check ensures the effectiveness of the emission control of the engine within the mt-n engine operating range. In the case of paragraph 4. Systems with Constant Mass Flow.
Turbocharged engines with or without cooling of the intake air: For NG fuelled engines, all these tests may be conducted with commercial fuel in the following way:. Ignition system gas engines. Laptops by Dan Ackerman 10 days ago. The fuel shall be the reference fuel specified in Annex IV. ELR Test During a prescribed load response test, the smoke of a warmed-up engine shall be determined by means of an opacimeter.
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If sample bags are used, they shall be evacuated. For type approval to row A of the tables in section 6.
The average temperature and pressure at the gas meter s or flow instrumentation inlet shall be recorded. Kt-m of the Sampling Filters. If the dilution air is not filtered, measurements at the beginning and at the end of the cycle, may be done, and the values averaged. Transitional provisions for extension of type-approval 6. Comparison of NO x Emission Values. At the manufacturers request, a dummy test may be run for conditioning of the engine and exhaust system before the measurement cycle.
The filters shall be returned to the weighing chamber and conditioned for at least one hour, but not more than 80 hours, and then weighed.
The Bessel algorithm is recursive in nature. Additionally, carbon dioxide is often used as a tracer gas for determining the dilution ratio of partial and full flow dilution systems.
Tm-m must be durable for the useful life of the engine. With the agreement of the authority, all other engines type approved to row A, B1 or B2, mt-j C of the tables in section 6. CVS volume flow rate.
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Slope of PDP calibration function. The smoke value on the random test speed of the ELR must not exceed the highest smoke value of the two adjacent test speeds by more than 20 per cent, or by more than 5 per cent of the limit value, whichever is greater. Whereas it is important to adopt measures with the aim of progressively establishing the internal market over a period expiring on 31 December ; whereas the internal market shall comprise an area without internal frontiers in which the free movement of goods, persons, services and capital is ensured.
During each mode the concentration of each gaseous pollutant, exhaust m-tm and power output shall be determined, and the measured values 88422-71g. Whereas the first programme of action of the European Communities on the protection of the environment, approved by the Council on 22 Novembercalled for account to be taken of the latest scientific advances in combating atmospheric pollution caused by gases emitted from motor vehicles and for Directives adopted previously to be amended accordingly; whereas the third programme of action provides for additional efforts to be made to reduce considerably the present level of emissions of pollutants from motor vehicles.
The proper mtm- frequency f c is the one that produces the required filter response time mt--m F. If the engine stalls anywhere during the test cycle, the engine shall be preconditioned and restarted, mt-n the test repeated.
The engine approved as a technical unit must bear:
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