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About This Item

 

Full Description

These requirements apply to the construction and performance of back pack fire extinguishers for use in fighting forest, brush, and grass fires. Back-pack extinguishers shall be classified under the following types: Type 1 Rigid Metal Tank; Type 2 Rigid Plastic Tank; Type 3 Soft Tank. Back-pack fire extinguishers are intended for use with water, wetting agents, and Class A foams.
 

Document History

  1. ULC 557

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    Standard for Back-Pack Fire Extinguishers (ULC S557)

    • Most Recent
  2. ULC 557


    Standard for Back-Pack Fire Extinguishers

    • Historical Version