ASTM D7170-2014 red 1415 Standard Test Method for Determination of Derived Cetane Number &40 DCN&41 of Diesel Fuel OilsFixed Range Injection Period Constant Volume Combustion Chamb.pdf
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1、Designation: D7170 12aD7170 14Standard Test Method forDetermination of Derived Cetane Number (DCN) of DieselFuel OilsFixed Range Injection Period, Constant VolumeCombustion Chamber Method1This standard is issued under the fixed designation D7170; the number immediately following the designation indi
2、cates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the quantitative
3、determination of the ignition characteristics of conventional diesel fuel oils, dieselfuel oils containing cetane number improver additives, and is applicable to products typical of Specification D975, Grades No. 1-Dand 2-D regular and low-sulfur diesel fuel oils, European standard EN 590, and Canad
4、ian standards CAN/CGSB-3.517-2000 andCAN/CGSB 3.6-2000. The test method may also be applied to the quantitative determination of the ignition characteristics ofblends of fuel oils containing biodiesel material, and diesel fuel oil blending components.1.2 This test method measures the ignition delay
5、and utilizes a constant volume combustion chamber with direct fuel injectioninto heated, compressed air. An equation converts an ignition delay determination to a derived cetane number (DCN).1.3 This test method covers the ignition delay range from a minimum value of 35.0 DCN (ignition delay of 4.89
6、 ms) to amaximum value of 59.6 DCN (ignition delay of 2.87 ms). The average DCN result for each sample in the ILS ranged from 37.29(average ignition delay of 4.5894 ms) to 56.517 (average ignition delay of 3.0281 ms).1.4 The values stated in SI units are to be regarded as standard. No other units of
7、 measurement are included in this standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulator
8、ylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D613 Test Method for Cetane Number of Diesel Fuel OilD975 Specification for Diesel Fuel OilsD1193 Specification for Reagent WaterD4057 Practice for Manual Sampling of Petroleum and Petroleum ProductsD4175 Terminology Relating to Pe
9、troleum, Petroleum Products, and LubricantsD4177 Practice for Automatic Sampling of Petroleum and Petroleum ProductsD5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum ProductsD6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to
10、 Evaluate Analytical Measure-ment System PerformanceD6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and LubricantsD6708 Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purportto Measure
11、 the Same Property of a MaterialE456 Terminology Relating to Quality and StatisticsE832 Specification for Laboratory Filter Papers2.2 EN Standard:3EN 590 Automotive FuelsDieselRequirements and Test Methods1 This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Produc
12、ts, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.01 on Combustion Characteristics.Current edition approved Nov. 1, 2012May 1, 2014. Published February 2013May 2014. Originally approved in 2006. Last previous edition approved in 2012 asD7170D7170 12a.12. DOI: 10.15
13、20/D7170-12A.10.1520/D7170-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from European Commi
14、ttee for standardization. Central Secretariat: rue de Stassart, 36, B-1050 Brussels, Belgium.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possi
15、ble to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopy
16、right ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.3 Energy Institute Standard:4IP 41 Ignition Quality of Diesel FuelsCetane Engine Test Method2.4 Canadian Standards:5CAN/CGSB-3.517-2000 Regular Sulphur Diesel FuelSpecificationCAN/CGSB 3.6
17、-2000 Automotive Low-Sulphur Diesel FuelSpecification2.5 DIN Standard:6DIN 73372 Einspritzdsen Grsse T und U3. Terminology3.1 Definitions:3.1.1 accepted reference value (ARV), na value that serves as an agreed-upon reference for comparison and that is derived as(1) a theoretical or established value
18、, based on scientific principles, (2) an assigned value, based on experimental work of somenational or international organization, such as the U.S. National Institute of Standards and Technology (NIST), or (3) a consensusvalue, based on collaborative experimental work under the auspices of a scienti
19、fic or engineering group. E4563.1.1.1 DiscussionIn the context of this method, accepted reference value is understood to apply to the ignition delay of specific reference materialsdetermined under reproducibility conditions by collaborative experimental work.3.1.2 biodiesel, nfuel comprised of mono-
20、alkyl esters of long chain fatty acids derived from vegetable oils or animal fats,designated B100.3.1.3 biodiesel blend (BXX), nblend of biodiesel fuel with diesel fuel oils.3.1.3.1 DiscussionIn the abbreviation, BXX, the XX represents the volume percentage of biodiesel fuel in the blend.3.1.4 cetan
21、e number (CN), na measure of the ignition performance of a diesel fuel oil obtained by comparing it to referencefuels in a standardized engine test. D41753.1.4.1 DiscussionIn the context of this method, cetane number is that defined by ASTM D613/IP 41.3.1.5 check standard, nin QC testing, a material
22、 having an accepted reference value used to determine the accuracy of ameasurement system. D62993.1.5.1 DiscussionIn the context of this test method, check standard refers to heptane.3.1.6 quality control (QC) sample, nfor use in quality assurance programs to determine and monitor the precision and
23、stabilityof a measurement system, a stable and homogeneous material having physical or chemical properties, or both, similar to those oftypical samples tested by the analytical measurement system. The material is properly stored to ensure sample integrity, and isavailable in sufficient quantity for
24、repeated, long term testing. D62993.2 Definitions of Terms Specific to This Standard:3.2.1 calibration reference material, na pure chemical having an assigned ignition delay accepted reference value.3.2.2 charge air, ncompressed air at a specified pressure introduced into the combustion chamber at t
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