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ASTM-D7170:2006 Edition

ASTM-D7170:2006 Edition

$44.96

D7170-06a Standard Test Method for Determination of Derived Cetane Number (DCN) of Diesel Fuel Oils-Fixed Range Injection Period, Constant Volume Combustion Chamber Method

Published By Publication Date Number of Pages
ASTM 2006 12
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1.1 This test method covers the quantitative determination of the ignition characteristics of conventional diesel fuel oils, diesel fuel oils containing cetane number improver additives, and is applicable to products typical of Specification D 975, Grades No. 1-D and 2-D regular and low-sulfur diesel fuel oils, European standard EN 590, and Canadian standards CAN/CGSB-3.517-2000 and CAN/CGSB 3.6-2000. The test method may also be applied to the quantitative determination of the ignition characteristics of blends of fuel oils containing biodiesel material, and diesel fuel oil blending components.

1.2 This test method measures the ignition delay and utilizes a constant volume combustion chamber with direct fuel injection into 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 2.90 to 4.35 ms (60.0 to 40.0 DCN). The combustion analyzer can measure shorter and longer ignition delays but precision may be affected.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Interferences
3 FIG. 1
4 Apparatus
Reagents and Materials
5 Sampling and Test Specimen Preparation
Basic Apparatus Settings and Standard Operating Conditions
6 Calibration and Quality Control Testing
7 Procedure
FIG. 2
8 Report
Precision and Bias
Keywords
9 A1. HAZARDS INFORMATION
A1.1
A1.2
A1.3
A1.4
A1.5
10 A2. SUPPLEMENTAL PROCEDURE INFORMATION
A2.1 Test Sequence
FIG. A2.1
11 X1. EXAMPLE OF TEST OUTPUT
FIG. X1.1

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