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Avoirdupois system

Reference

measured.avoirdupois

Defines the Avoirdupois system of weights and their conversions to SI

Attributes: Base units

Pound (Unit): The base unit for the Avoirdupois system

Attributes: Units of mass ("weight")

Grain (Unit): 1/7000 lb.

Dram (Unit): 1/256 lb.

Ounce (Unit): 1/16 lb.

LongHundredweight (Unit): 112 lb.

LongTon (Unit): 2240 lb.