CAN ULC-S111-13 (R2018) PDF Download

This Edition has been approved by the Standard Council of Canada to be published as a National Standard of Canada.

There were no major changes made to the Standard other than replacing the use of surgical gauze with cheesecloth.

The test requirements in this Standard cover air filter units of both washable and throw-away types for removal of dust and other airborne particles from air circulated mechanically in equipment and systems.

Air filter units conforming to the requirements of this Standard are categorized as follows:

CLASS 1 UNITS* – Those which, when clean, do not burn with a flame or produce sparks and emit only negligible amounts of smoke when tested.

CLASS 2 UNITS* – Those which, when clean, burn moderately or emit moderate amounts of smoke when tested.

* further details on classification can be found within the Standard