-
-
Available Formats
- Options
- Availability
- Priced From ( in USD )
-
Available Formats
-
- Immediate download
- $166.00
- Add to Cart
-
- Printed Edition
- Ships in 1-2 business days
- $166.00
- Add to Cart
-
- Printed Edition + PDF
- Immediate download
- $259.00
- Add to Cart
Customers Who Bought This Also Bought
-
ISO 6246:2017
Priced From $81.00 -
ISO 3648:1994
Priced From $54.00 -
ISO 15911:2000
Priced From $54.00 -
ISO 5164:2014
Priced From $166.00
About This Item
Full Description
ISO 5165:2020 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.
Document History
-
ISO 5165:2020
viewing
Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method- Most Recent
-
ISO 5165:2017
Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method- Historical Version
-
ISO 5165:1998
Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method- Historical Version