Summary of Topics

This Third Edition CAN/ULC 522 dated November 30, 2022 has been issued to reflect the latest SCC approval date, and to incorporate the proposals dated September 16, 2022.

1 Scope

1.1 These requirements cover hose in nominal internal diameter sizes of 8 mm up to and including 32 mm for use on portable and wheeled fire extinguishers, hand hose line fixed extinguishing systems, and also as booster hose on fire apparatus.

1.2 Fire extinguisher, hand hose line system and booster hose covered by these requirements is intended for use at a maximum working pressure of 1400, 2800, 4200, 5600, 7000, or 8750 kPa (gauge) at a minimum temperature of –40 °C.

1.3 These requirements also cover hose for use at –54 °C.

1.4 These requirements also cover hose designated as oil resistant.

1.5 These requirements do not cover couplings nor their method of attachment.

NOTE: Reference to each applicable Test Method for a requirement is indicated by the letters TM and the appropriate clause number in parenthesis in the right hand margin.