Industry Standard
[PUBLISHED]
UL Standard (UL 331, Edition 8)
UL Standard (UL 331, Edition 8)
Standard for Strainers for Flammable Fluids and Anhydrous Ammonia (Ed. 8)
Title (German)
No German title available
Brief description
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.