Convert ton (assay) (US) to femtogram
Please provide values below to convert ton (assay) (US) [AT (US)] to femtogram [fg], or Convert femtogram to ton (assay) (US).
How to Convert Ton (Assay) (Us) to Femtogram
1 AT (US) = 2.91666666666667e+16 fg
Example: convert 15 AT (US) to fg:
15 AT (US) = 15 × 2.91666666666667e+16 fg = 4.375e+17 fg
Ton (Assay) (Us) to Femtogram Conversion Table
| ton (assay) (US) | femtogram |
|---|
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.
Femtogram
A femtogram (fg) is a unit of mass equal to 10^-15 grams.
History/Origin
The femtogram was introduced as part of the metric system's extension to measure extremely small masses, particularly in scientific fields such as chemistry and biology, during the 20th century as measurement technology advanced.
Current Use
Femtograms are used in scientific research to measure tiny quantities of substances, such as in molecular biology, nanotechnology, and materials science, where precise measurement of very small masses is required.