ASME A112.21.3M-1985 (R2022)

The scope of this Standard is the development of standards for hydrants including nonfreeze wall, ground, post, and floor types and moderate climate wall and floor types, which are used in buildings and grounds as water supply terminals, employed principally for lawn and flower bed watering hoses and normal building maintenance functions.

This Standard covers definitions, connections, materials, variations, testing and operation, and general requirements for the hydrantypes included in the scope.