scope:

Application

This Standard applies to

a) oil burners of the atomizing type (irrespective of size, firing rate, or grade* of fuel oil) that are designed primarily for installation in warm-air, hot-water, and steam-heating equipment;

* The grade of fuel oil should be as specified in CSA B140.0, except for grade B6-B20, which is specified in ASTM D396.

b) atomizing-type oil burners that are a part of an assembly in appliances such as ovens, heaters, ranges, and special furnaces;

c) integral atomizing-type burners, where they are part of a complete appliance; and

d) certain components and accessories (e.g., fuel units and combustion safety controls) for atomizing- type oil burners.

Intent

This Standard states the minimum requirements for nozzles that are designed for installation in oil burners of the pressure atomizing type.

This Standard includes requirements for construction, marking, and performance to provide consistent operation of nozzles.

The intent of the requirements is to determine the consistency of flow rate, nominal spray angle, and nominal spray pattern for any subsequent production lot of similarly identified nozzles to an original lot, rather than to compare these characteristics to any absolute or specified values.

The requirements apply to nozzles that are

a) of the capacity range up to and including 7.6 L/h (2 US gph); and

b) primarily intended for use with fuel oil not heavier than grade No. 2, and for fuel oils of grade B6-B20.

Note: Nozzles designed for use in a specific burner may also be evaluated to the requirements in this Standard.

Exclusion

This Standard does not apply to manually lighted atomizing burners.

Terminology

In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Units of measurement

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.