chain (based on U.S. survey foot)
type: Concept
definition: Unit of the length according the Anglo-American system of units.
in scheme: unit-of-measure
notation: M49
dimension vector: L1
rec20 quantity: length, breadth, height, thickness, radius, radius of curvature, cartesian coordinates, diameter, length of path, distance
rec20 sector: Space and Time
unit symbol: ch (US survey)