Calculo del indice de cetano

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United States
Environmental Protection Agency
Office of Transportation and Air Quality
National Vehicle and Fuel Emissions Laboratory
2565 Plymouth Road
Ann Arbor, MI 48105Method for Calculating Cetane
Index of Diesel Fuels
This method is written for the Environmental Protection Agency, National Vehicle and Fuel
Emissions Laboratory (NVFEL) internal use. The use ofspecific brand names by NVFEL in
this method are for reference only and are not an endorsement of those products. This
document may be used for guidance by other laboratories.
NVFEL Reference Number121
Implementation Approval
Original Procedure Authorized by EPCN # 322 on 05-06-2002
Revision Description
NFVEL 121 Method for Calculating Cetane Index of Diesel Fuels Page 2 of 4
1.0 Scope......................................................................................... 3
2.0 Summary of Method.................................................................. 3
3.0Significance............................................................................... 3
4.0 Applicable Documents .............................................................. 3
5.0Definitions................................................................................. 3
6.0 Interference’s and/or Limitations .............................................. 3
7.0Safety......................................................................................... 4
8.0 Apparatus .................................................................................. 4
9.0 Reagents and Materials............................................................. 4
10.0 Sampling ................................................................................... 4
11.0Calibration................................................................................. 4
12.0 Analytical Procedure ................................................................. 4
13.0 Calculations and Reporting...
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