ČSN EN 16906 (656170)

Kapalné ropné výrobky - Stanovení kvality vznícení motorové nafty - metoda motoru BASF (Norma k přímému použití jako ČSN).

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NORMA vydána dne 1.3.2018

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Informace o normě:

Označení normy: ČSN EN 16906
Třídící znak: 656170
Katalogové číslo: 503794
Datum vydání normy: 1.3.2018
Kód zboží: NS-808814
Počet stran: 24
Přibližná hmotnost: 72 g (0.16 liber)
Země: Česká technická norma
Kategorie: Technické normy ČSN

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Anotace textu normy ČSN EN 16906 (656170):

This European Standard specifies a test method for the determination of cetane numbers ("CN") in diesel fuel in the range from CN 45 to CN 63, using a standard single cylinder, four-stroke cycle, indirect injection engine. The cetane number provides a measure of the ignition characteristics of diesel fuels in compression ignition engines. The cetane number is determined at constant speed in a compression ignition test engine equipped with a swirl chamber. This European Standard is applicable to distillate as well as paraffinic diesel fuels intended for use in diesel engines, including those containing fatty-acid methyl esters (FAME), ignition-improvers or other additives. The cetane number scale comprises a range from zero to 100, but typical testing is currently performed in the range from about 40 CN to about 75 CN. This engine test procedure may be used for other fuels such as synthetics and vegetable oils. However, samples with fuel properties that interfere with the gravity-based pre-supply pressure to the fuel pump e.g. due to high viscosity can only be used to a limited extent. Precision data for such fuels are not available at this stage. Precision data for paraffinic diesel fuels are currently under development. NOTE 1: For the purpose of this European Standard the expressions "%(m/m)" and "%(V/V)" are used to represent the mass faction and volume fraction respectively of a material. NOTE 2: The test method is also suitable for determining cetane numbers outside the range of the scope, however, the precision statement only applies for fuels in the specified range


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