Convert ton (assay) (US) [AT (US)] to kilogram kg Online | Free weight-and-mass Converter
Ton (Assay) (US) [AT (US)]
The assay ton (AT) is a specialized unit of weight used in the mining and precious metals industries in the United States. It is primarily used to measure ore quantities for assaying, which is the process of analyzing the metal content of ore samples.
One assay ton equals 29.1667 pounds (about 13.23 kilograms), which is different from the standard short ton (2,000 pounds). This smaller ton unit allows for more precise measurements in evaluating the value of ore deposits.
The assay ton helps miners and metallurgists accurately calculate the concentration of valuable metals like gold and silver in ores.
Kilogram (kg)
The kilogram is the SI base unit of mass, representing the amount of matter in an object.
It is symbolized as kg.
Since 2019, the kilogram is defined by fixing the value of the Planck constant to exactly joule seconds, linking mass to fundamental physical constants.
Before this, it was defined by a physical platinum-iridium prototype.
It is the only SI base unit still using the prefix "kilo" in its name.
Key points:
1 kg is the base unit of mass in the metric system
Defined using the Planck constant for high precision
Widely used globally in science, industry, and everyday life
The kilogram ensures accurate and universal mass measurements across the world.