EVS-EN ISO 5165:2020

Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method (ISO 5165:2020)

Kehtiv alates 17.08.2020
ISO 5165:2020; EN ISO 5165:2020
Tegevusala (ICS grupid)
75.160.20 Vedelkütused
Direktiivid või määrused
Standardi ajalugu
This document 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. This document 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)[3] confirmed that paraffinic diesel from synthesis or hydrotreatment, containing up to a volume fraction of 7 % 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 or vegetable oils. However, the precision for those fuels has not been established and the relationship to the performance of such materials in full-scale engines is not completely understood. Samples with fluid properties that interfere with the gravity flow of fuel to the fuel pump or delivery through the injector nozzle are not suitable for rating by this method. NOTE This document specifies operating conditions in SI units but engine measurements are specified in inch-pound units or Fahrenheit because these are the historical units used in the manufacture of the equipment, and thus some references in this document include these and other non-SI units in parenthesis.
15,01 € koos KM-ga
15,01 € koos KM-ga
Hind: 2,40 € koos KM-ga
Standardi monitooring
Teised on ostnud veel

CEN/TS 16202:2013

Sludge, treated biowaste and soil - Determination of impurities and stones
Uusim versioon Kehtiv alates 14.11.2013

EVS-EN ISO 18123:2015

Solid biofuels - Determination of the content of volatile matter (ISO 18123:2015)
Uusim versioon Kehtiv alates 03.12.2015
Põhitekst + muudatus

EVS-EN 16709:2015+A1:2018

Automotive fuels - High FAME diesel fuel (B20 and B30) - Requirements and test methods
Uusim versioon Kehtiv alates 19.12.2018