Underwriters' Laboratories of Canada

STANDARD FOR HOSE AND HOSE ASSEMBLIES FOR FLAMMABLE AND COMBUSTIBLE LIQUIDS - FIFTH EDITION
 N CAN/ULC-S612-16

Annotation

This Standard sets forth minimum requirements for hose and hose assemblies, including coaxial vapour recovery hose and hose assemblies, for use on dispensing devices for flammable and combustible liquids.

This Standard does not cover hose or hose assemblies for aircraft refuelling service.

This Standard does not cover hose or hose assemblies intended for use as a component in automotive vehicles and/or in motorized or mechanical equipment, excluding dispensing devices.

NOTE: Regulation on Occupational Health and Safety may not permit the use of hose or hose assemblies in confined spaces.

This Standard sets forth minimum requirements for hose and hose assemblies in sizes up to and including a nominal diameter of 40 mm.

Hose for conveying liquid fuel is intended for use at a maximum working pressure of 350 kPa. Hose for recovering vapours of fuel is intended for use at a maximum working pressure of 3.5 kPa, including slight negative pressures from vapour assist systems.

This Standard sets forth minimum requirements for hose and hose assemblies for use at temperatures down to -40 °C or -54 °C and up to +50 °C.

NOTE: Products tested for performance at -40 °C only are not marked for lowest operating temperature. Only products tested for performance at -54 °C are marked accordingly.

Requirements for the installation and use of equipment handling flammable and combustible liquids may be included in the National Fire Code of Canada and the regulations of the authority having jurisdiction.