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The myriagram (French: myriagramme) is a former French and metric unit of mass equal to 10,000 grams (myriad being the Greek word for ten thousand). Although never as widely used as the kilogram, the myriagram was employed during the 19th century as a replacement for the earlier American customary system quarter, which was equal to 25 pounds (11,340 g).
In 1975, the United States, having previously authorized use of the myriagram in 1866, declared the term no longer acceptable.[1][2]
- ^ Roberts, Richard W. (1975-06-01). Metric System of Weights and Measures - Guidelines for Use. USA: Director of the National Bureau of Standards. Federal Register FR Doc.75-15798 (1975-06-18).
Accordingly, the following units and terms listed in the table of metric units in section 2 of the act of July 28, 1866, that legalized the metric system of weights and measures in the United States, are no longer accepted for use in the United States: myriameter, stere, millier or tonneau, quintal, myriagram, kilo (for kilogram).
- ^ Judson, Lewis V. (1976-10-01) [1963]. "Appendix 7". In Barbrow, Louis E. (ed.). Weights and Measures Standards of the United States, a brief history (PDF). Derived from a prior work by Louis A. Fisher (1905). USA: US Department of Commerce, National Bureau of Standards. p. 33. LCCN 76-600055. NBS Special Publication 447; NIST SP 447; 003-003-01654-3. Retrieved 2015-10-12.