scope:

1.1 This standard applies to three types ofmiddle distillate fuel oils that are suitable for use in liquid-fuel-burning equipmentwithout preheating (Types 0, 1 and 2), and three types of fuel oils thatcontain residual fuel components and require preheating (Types 4, 5 and 6).

1.2 The heating fuel oils covered by thisstandard are intended for use in oil burning equipment to generate heat for domesticand industrial purposes.

1.2.1 Types 0, 1 and 2 fuel oils areprimarily for use in domestic-type oil burners. They may also be used for some industrialpurposes.

a. Type 0 fuel oil is intended for use infuel oil burning appliances that have outside storage and where ambient temperaturesas low as  -48 ° C could be encountered.

b. Type 1 fuel oil is intended primarily foruse in sleeve-type and wick-feed burners, and in most vaporizing pot-typeburner applications. It is also intended for atomizing burners in which Type 2fuel oil cannot be used satisfactorily. During periods of lower ambienttemperature, Type 1 fuel oil may be used in place of Type 2 to minimize waxingproblems.

c. Type 2 fuel oil is a heavier distillatethan Type 1 and is intended for use in most atomizing-type burner applications.This type of fuel oil is used in most domestic burners (furnaces and boilers)and in some medium capacity commercial and industrial burners. Type 2 maycontain up to 5% biodiesel.

1.2.2 Types 4, 5 and 6 fuel oils areprimarily for use as industrial fuels: suitable for use in the pulp and paperindustry, metallurgical operations, heat or power generation, etc.

a. Type 4 is an industrial fuel oil intendedprimarily for burner installations equipped with limited preheating facilitiesor with no preheating.

b. Type 5 is a residual fuel oil for burnerinstallations equipped with limited preheating facilities that require a fueloil of lower viscosity than Type 6.

c. Type 6 is a high-viscosity residual fueloil for use in burners equipped with preheating facilities to handle such fuels.

1.3 The testing and evaluation of a productagainst this standard may require the use of materials and/or equipment thatcould be hazardous. This document does not purport to address all the safetyaspects associated with its use.

Anyone using this standard has theresponsibility to consult the appropriate authorities and to establish appropriatehealth and safety practices in conjunction with any applicable regulatoryrequirements prior to its use.