ULC-S322-1992 (R2016) PDF Download

This First Edition ULC Standard has been reaffirmed effective February, 2016. There have been no technical changes made to the Standard.

These requirements cover emergency vault ventilators and vault ventilating ports.

Emergency vault ventilators are primarily intended to provide fresh air to persons locked in the vault by accident or during a robbery.

Vault ventilating ports are intended for connection to an outside ventilating system that provides circulating air while the vault is open.

These requirements are intended to establish burglary resistant ratings. When installed in a vault according to the manufacturer's instructions, the products covered by these requirements do not affect the burglary resistant rating of the vault.

These requirements do not cover protection against entry by attacks with a burning bar (thermal lance) or explosives.