Automotive and railroad diesel fuels, in general, are derived from petroleum refinery products which are commonly referred to as middle distillates. Middle distillates represent products which have a higher boiling range than gasoline and are obtained from fractional distillation of the crude oil or from streams from other refining processes. Finished diesel fuels represent blends of middle distillates. The properties of commercial distillate diesel fuels depend on the refinery practices employed and the nature of the crude oils from which they are derived. Thus, they may differ both with and within the region in which they are manufactured. Such fuels generally boil over a range between 163 and 371 °C (325 to 700 °F). Their makeup can represent various combinations of volatility, ignition quality, viscosity, sulfur level, gravity, and other characteristics. Additives may be used to impart special properties to the finished diesel fuel.
Rationale: Several references need to be revised to reflect the many changes that have occurred over the last few years.
Proposed revisions to the J313 Diesel standard (and possibly more)
Include renewable diesel in standard, only addresses biodiesel
Rework the biodiesel section to include biodiesel and renewable diesel
Ensure the list of ASTM standards is current – i.e., D7668, D6078 (sl bocle) should be removed
Update WWFC
Update literature citations
Update E9590 – (13?)
In there a limit to applicability of D976?
Do we need to add biodiesel and renewable diesel properties tables?
4.11 – carbon residue – Prohibition for fuels containing cetane improver
4.14 – Rancimat for B100 or Bxx blends
Add new haze clarity index
Update diesel reference fuel list
Alternate IC engine fuels – hydrogen, methanol(?) ethanol
Tailpipe regulations re-write – add new updates including carbon emissions requirements
CARB requirements
