This International Standard describes a procedure for the calculation of the cetane index of middle-distillate fuels from petroleum-derived sources. The calculated value is termed the “cetane index by four-variable equation”. Throughout the remaining text
DS/EN ISO 4264/A1:2013 history
2013DS/EN ISO 4264/A1:2013 Petroleum products - Calculation of cetane index of middle-distillate fuels by the four-variable equation
2007DS/EN ISO 4264:2007 Petroleum products - Calculation of cetane index of middle-distillate fuels by the four-variable equation