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.
Product Details
Edition: 2 Published: 07/01/2014 Number of Pages: 25
M00001742
2021-06-03
New product
ULC 557
Standard for Back-Pack Fire Extinguishers (ULC S557)
standard by Underwriters Laboratories of Canada, 07/01/2014