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Commission Directive 2005/78/EC of 14 November 2005 implementing Directive 2005/55/EC of the European Parliament and of the Council on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles and amending Annexes I, II, III, IV and VI thereto (Text with EEA relevance) · European Union

Section 2.2 is replaced by the following: ‘2.2. Other instruments Measuring instruments for fuel consumption, air consumption, temperature of coolant and lubricant, exhaust gas pressure and intake manifold depression, exhaust gas temperature, air intake temperature, atmospheric pressure, humidity and fuel temperature shall be used, as required. These instruments shall satisfy the requirements given in table 9: Table 9 Accuracy of measuring instruments Measuring Instrument | Accuracy Fuel Consumption | ± 2 % of Engine's Maximum Value Air Consumption | ± 2 % of reading or ± 1 % of engine's maximum value whichever is greater Exhaust Gas Flow | ± 2,5 % of reading or ± 1,5 % of engine's maximum value whichever is greater Temperatures ≤ 600 K (327 °C) | ± 2 K Absolute Temperatures ≥ 600 K (327 °C) | ± 1 % of Reading Atmospheric Pressure | ± 0,1 kPa Absolute Exhaust Gas Pressure | ± 0,2 kPa Absolute Intake Depression | ± 0,05 kPa Absolute Other Pressures | ± 0,1 kPa Absolute Relative Humidity | ± 3 % Absolute Absolute Humidity | ± 5 % of Reading Dilution Air Flow | ± 2 % of Reading Diluted Exhaust Gas Flow | ± 2 % of Reading’

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Source: EUR-Lex (Cellar) · retrieved 2026-11-10 · Text as adopted (Official Journal); later amendments are not incorporated in this text.