ULC ORD-C331-75 (R2018):1975 Edition

These requirements cover complete self-contained strainer or filter assemblies intended for use with designated flammable fluids and anhydrous ammonia (fertilizer grade) in residential and commercial fuel burning, dispensing, and handling facilities. Although these devices are designated "strainers", they may be either strainers or filters according to the common terminology of the industry.

The term "flammable fluids" as used in this guide means fuel oil, gasoline, kerosene, and similar petroleum products, liquefied petroleum gas (LP-Gas), and manufactured and natural fuel gases. Published 4/30/1975.