BS EN 15195:2023 PDF

Scope: 1 Scope This document specifies a test method for the quantitative determination of ignition delay of middle distillate fuels intended for use in compression ignition 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 document covers the ignition delay range from 2,58 ms to 6,34 ms (76,8 DCN to 33,9 DCN ). The combustion analyser can measure shorter or longer ignition delays, but precision is not known. This document is applicable to diesel fuels, including those containing fatty acid methyl esters (FAME) up to 30 % ( V/V ). The method is also applicable to middle distillate fuels of non-petroleum origin, oil-sands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives and low-sulfur diesel fuel oils. Furthermore, the method is applicable to paraffinic diesel from synthesis or hydrotreatment, containing up to a volume fraction of 7 % FAME [1]. However, users applying this document especially to unconventional distillate fuels are warned that the relationship between derived cetane number and combustion behaviour in real engines is not yet fully understood. The test method is also applicab...

BS EN 15195:2023 Referenced Document

EN ISO 3170 Petroleum liquids - Manual sampling (ISO 3170:2004)
EN ISO 3171 Petroleum liquids - Automatic pipeline sampling (ISO 3171:1988)
EN ISO 3696 Water for Analytical Laboratory Use- Specification and Test Methods (ISO 3696 : 1987)
ISO 1998-2:1998 Petroleum industry - Terminology - Part 2: Properties and tests
ISO 4010 Diesel engines - Calibrating nozzle, delay pintle type

2023 BS EN 15195:2023 Liquid petroleum products. Determination of ignition delay and derived cetane number (DCN) of middle distillate fuels by combustion in a constant volume chamber
2014 BS EN 15195:2014 Liquid petroleum products. Determination of ignition delay and derived cetane number (DCN) of middle distillate fuels by combustion in a constant volume chamber
2007 BS EN 15195:2007 Liquid petroleum products - Determination of ignition delay and derived cetane number (DCN) of middle distillate fuels by combustion in a constant volume chamber