Louisiana Administrative Code
Title 7 - AGRICULTURE AND ANIMALS
Part XXXV - Agro-Consumer Services
Chapter 3 - Petroleum Products
Subchapter A - Standards
Section XXXV-305 - Standard Fuel Specifications for Diesel Fuel

a. Cetane Number. A minimum cetane number of 47.0 as determined by ASTM Standard Test Method D 613.

b. Low Temperature Operability. A cold flow performance measurement which meets the ASTM D 975 tenth percentile minimum ambient air temperature charts and maps by either ASTM Standard Test Method D 2500 (Cloud Point) or ASTM Standard Test Method D 4539 (Low Temperature Flow Test or LTFT). Low temperature operability is only applicable October 1-March 31 of each year.

c. Thermal Stability. A minimum reflectance measurement of 80 percent as determined by ASTM Standard Test Method D 6468 (180 minutes, 150°C).

d. Energy Content. A minimum energy content of 38.65 MJ/L, gross (138,700 BTU/gallon, gross) as measured by ASTM Standard Test Method D 240.

e. Fuel Injector Cleanliness. A Coordinating Research Council (CRC) rating of 10.0 r less and a flow loss of 6.0 percent or less as determined by the Cummins L-10 Injector Depositing Test.

1For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard's Document Summary page on the ASTM website. Copies of referenced ASTM standards may be obtained from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: (610) 832-9500, Fax: (610) 832-9555 or may be inspected at the Division of Weights and Measures, Department of Agriculture and Forestry, 5825 Florida Blvd., Baton Rouge, LA 70806.