http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Specifications and tolerances for reference standards and field standards, weights, and measures
Specifications and tolerances for field standard weights (NIST class F)
National Institute of Standards and Technology (U.S.)
1 online resource (v, 5 pages, 4 unnumbered pages) : illustrations
Title from title screen (viewed on Jan. 3, 2012).
Specifications and tolerances for reference standards and field standards weights and measures. 1, Specifications and tolerances for field standard weights (NIST Class F)