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ISO 5165:2017现行

Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method

出版：International Organization for Standardization

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基本信息

标准编号： ISO 5165:2017

发布时间：2017/12/13 0:00:00

标准类别：Standard

出版单位：International Organization for Standardization

标准页数：20

标准简介

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, vegetable oils, etc. However, 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 because these are the historical units used in the manufacture of the equipment, and thus some references in this document include these units in parenthesis.

本标准替代的旧标准

ISO 5165:1998

等同采用的国际标准

NEN EN ISO 5165 : 2018 - Identical

SS-EN ISO 5165:2018 - Identical

I.S. EN ISO 5165:1998 - Identical

UNI EN ISO 5165:2018 - Identical

NF EN ISO 5165 : 2018 - Identical

DIN EN ISO 5165 : 2018 - Identical

UNE-EN ISO 5165:2018 - Identical

I.S. EN ISO 5165:2018&LC:2018 - Identical

PN EN ISO 5165 : 2018 - Identical