Standard 537, Edition 6
ULC 537

Verification of Fire Alarm Systems

ULC Standard CAN-ULC-S537-2019-REV1 Edition 6 Published Date: August 01, 2019 Last Revision: April 05, 2021 SCC Approved: April 05, 2021

$254.83-$321.16

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July 28, 2023
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January 10, 2022
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