S551-95

1. SCOPe 1.1 This Standard contains requirements for 25 and 38 mm forged quick-connect couplings and adapters of the external lug design for use in the forestry service. NOTES: 1) Quick-connect coupling and adapter sizes are in reference to the forestry hose end. 2) The requirements for non-forged External-Lug Quick-Connect Couplings and Adapters for Forestry Fire Hose are contained in Standard ULC-S558. 1.2 The couplings are intended for use with forestry fire hose of the 25 and 38 mm standard sizes. NOTE: Where the word "couplings" is used, it shall also refer to adapters.