ton, assay
type: Concept
definition: Non SI-conforming unit of the mass used in the mineralogy to determine the concentration of precious metals in ore according to the mass of the precious metal in milligrams in a sample of the mass of an assay sound (number of troy ounces in a short ton (1 000 lb)).
in scheme: unit-of-measure
notation: M85
conversion multiplier: 0.02916667
dimension vector: M1
rec20 quantity: mass
rec20 sector: Mechanics