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Underwriters Laboratories of Canada

Founded in 1920, Underwriters Laboratories of Canada (ULC) is an independent product safety testing, certification and inspection organization, accredited by the Standards Council of Canada.

7 Underwriters Road
Toronto
ULC
Canada
Tel: +1 866 937-3852

Documents by this publisher

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Series details Title Year Status
CAN/ULC S503-05 Standard for carbon-dioxide fire extinguishers 2005 Current
CAN/ULC S504-12 Standard for dry chemical fire extinguishers 2012 Withdrawn
CAN/ULC S504-24 Standard for dry chemical fire extinguishers 2024 Current
CAN/ULC S507-05 Standard for water fire extinguishers 2005 Current
CAN/ULC S508-18 Rating and fire testing of fire extinguishers 2018 Current
CAN/ULC S524-24 Standard for installation of fire alarm systems 2024 Current
CAN/ULC S524-19 Standard for installation of fire alarm systems 2019 Withdrawn
CAN/ULC S525-16 Audible signaling devices for fire alarm and signaling systems, including accessories 2016 Withdrawn
CAN/ULC S525-23 Audible signaling devices for fire alarm and signaling systems, including accessories 2023 Current
CAN/ULC S526-16 Visible signaling devices for fire alarm and signaling systems, including accessories 2016 Withdrawn
CAN/ULC S526-23 Standard for visible signaling devices for fire alarm and signaling systems, including accessories 2023 Current
CAN/ULC S527-19 Standard laboratory guide for control units for fire alarm systems 2019 Current
CAN/ULC S528-14 Standard for manual stations for fire alarm systems, including accessories 2014 Current
CAN/ULC S529-16 Standard for smoke detectors for fire alarm systems 2016 Withdrawn
CAN/ULC S529-23 Smoke detectors for fire alarm systems 2023 Current
CAN/ULC S536-19 Standard for inspection and testing of fire alarm systems 2019 Current
CAN/ULC S541-16 Speakers for fire alarm and signaling systems, including accessories 2016 Withdrawn
CAN/ULC S541-23 Speakers for fire alarm and signaling systems, including accessories 2023 Current
CAN/ULC S566-17 Standard for halocarbon clean agent fire extinguishers 2017 Current
CAN/ULC S604-22 Standard for factory-built type A chimneys 2022 Current

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