DIN EN 16144:2012-05

This document (EN 16144:2012) has been prepared by Technical Committee CEN/TC 19 "Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin", the secretariat of which is held by NEN (Netherlands). The responsible national committee is NA 062-06-43 AA "Motorische Prüfung von flüssigen Kraftstoffen" ("Engine testing of liquid fuels") of the Fachausschuss Mineralöl- und Brennstoffnormung (Standardization Committee for petroleum, fuels, lubricants and related products) at the Materials Testing Standards Committee (NMP). This European Standard specifies a test method for the quantitative determination of ignition delay of middle distillate fuels intended for use in diesel engines. The method utilizes a constant volume combustion chamber designed for operation by compression ignition, and employing direct injection of fuel into compressed air that is controlled to a specified pressure and temperature. An equation is given to calculate the derived cetane number (DCN) from the ignition delay measurement. This method is applicable to diesel fuels, including mixtures of diesel fuels and FAME. It is also applicable to middle distillate fuels of non-petroleum origin, although users applying this standard are warned that the relationship between ignition characteristics and engine performance in unconventional fuels is not yet fully understood. This standard covers the ignition delay range from 2,9 ms to 5,0 ms (60 DCN to 35 DCN).