Convert ton (assay) (US) to Atomic mass unit
Please provide values below to convert ton (assay) (US) [AT (US)] to Atomic mass unit [u], or Convert Atomic mass unit to ton (assay) (US).
How to Convert Ton (Assay) (Us) to Atomic Mass Unit
1 AT (US) = 1.75645772227366e+25 u
Example: convert 15 AT (US) to u:
15 AT (US) = 15 × 1.75645772227366e+25 u = 2.63468658341049e+26 u
Ton (Assay) (Us) to Atomic Mass Unit Conversion Table
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Ton (Assay) (Us)
The ton (assay) (US), symbolized as AT (US), is a unit of weight used primarily in the assay and precious metals industry, equivalent to 31.1034768 grams.
History/Origin
The assay ton originated in the United States as a standardized measure for precious metal content in assays, aligning with the metric system but retaining the traditional 'ton' terminology for industry consistency.
Current Use
Today, the assay ton (AT US) is used mainly in the precious metals industry for assay purposes, especially in the context of gold and silver purity measurements, and is part of weight and mass conversions within the 'Common Converters' category.
Atomic Mass Unit
The atomic mass unit (u) is a standard unit of mass used to express atomic and molecular weights, defined as one twelfth of the mass of a carbon-12 atom.
History/Origin
The atomic mass unit was introduced in the early 20th century to provide a convenient scale for atomic weights. It was originally based on the mass of hydrogen but was later standardized to be one twelfth of the mass of a carbon-12 atom, which was adopted as a reference in 1961 by the IUPAC.
Current Use
The atomic mass unit is widely used in chemistry and physics to express atomic and molecular masses, facilitating calculations in molecular chemistry, nuclear physics, and related fields.