RO
SR EN ISO 5165:2018
Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method (ISO 5165:2017)
ISO 5165:2017 establishes the rating of diesel fuel oil in terms of an arbitrary scale of cetane numbers (CNs) using a standard single cylinder, four-stroke cycle, variable compression ratio, indirect injected diesel engine. The CN provides a measure of the ignition characteristics of diesel fuel oil in compression ignition engines. The CN is determined at constant speed in a pre-combustion chamber-type compression ignition test engine. However, the relationship of test engine performance to full scale, variable speed and variable load engines is not completely understood. ISO 5165:2017 is applicable for the entire scale range from 0 CN to 100 CN but typical testing is in the range of 30 CN to 65 CN. An interlaboratory study executed by CEN in 2013 (10 samples in the range 52,4 CN to 73,8 CN)[1] confirmed that paraffinic diesel from synthesis or hydrotreatment, containing up to 7 % (V/V) fatty acid methyl ester (FAME) can be tested by this test method and that the precision is comparable to conventional fuels. This test can be used for unconventional fuels such as synthetics,
Status :
Withdrawn
Approval date : 6/29/2018
Withdrawal date : 9/30/2020
Number of pages : 28
ICS : 75.160.20 Liquid fuels
Technical Committee : 320 - Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin
- Replaces SR EN ISO 5165:2001
- Normative reference SR EN ISO 4787:2011
- Normative reference SR EN ISO 3170:2004/C91:2005
- Normative reference SR EN ISO 3171:2002
- Normative reference SR EN ISO 3696:2002
- Normative reference SR EN ISO 3170:2004
- Replaced by SR EN ISO 5165:2020