What Is This Tool?
This unit conversion tool enables users to translate weight values from the historical pound (troy or apothecary) to the US assay ton [AT (US)], commonly used in mining and precious metal assaying contexts. It helps bridge older mass measurements and modern assay reporting standards.
How to Use This Tool?
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Enter the numerical value in pound (troy or apothecary) units
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Select 'pound (troy or apothecary)' as the input unit
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Choose 'ton (assay) (US) [AT (US)]' as the desired output unit
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Click the convert button to see the result
Key Features
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Converts between pound (troy or apothecary) and US assay ton [AT (US)] units
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Supports historical and modern assay mass interpretation
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Ideal for use in precious metals, mining, and metallurgy fields
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Browser-based and simple to use
Examples
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1 pound (troy or apothecary) equals 12.7968575638 ton (assay) (US) [AT (US)]
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2 pounds (troy or apothecary) equals 25.5937151276 ton (assay) (US) [AT (US)]
Common Use Cases
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Interpreting and converting historical apothecary prescriptions into modern metric systems
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Cataloguing weights of older coins and museum pieces recorded in troy or apothecary pounds
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Reporting precious metal content on assay certificates as ounces per assay ton
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Calculating ore shipments payments based on metal content per assay ton
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Translating historical assay data into modern units like grams per tonne for resource analysis
Tips & Best Practices
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Always specify units clearly to avoid confusion between assay tons and other ton units
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Use this converter primarily for historical data and assay-related applications
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Double-check old records for unit notation to ensure accurate conversion
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Note that assay ton mass values may vary, so refer to specific jurisdiction details when necessary
Limitations
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The mass of the US assay ton has historically varied between jurisdictions
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The troy pound is mostly obsolete and conversions may involve interpreting historic records
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Care is needed to prevent confusion with other ton or mass measurement units
Frequently Asked Questions
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What is a pound (troy or apothecary)?
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It is a historical mass unit equal to 12 troy ounces or 5,760 grains, mainly used in apothecaries and older precious-metal measures.
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What does 'ton (assay) (US) [AT (US)]' refer to?
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It is a historical mining mass unit used for reporting precious metal content in assay certificates, with its exact mass varying by jurisdiction.
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Why is this conversion important?
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It helps translate historical precious metal weight records into modern standards used in mining and assay reporting.
Key Terminology
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Pound (troy or apothecary)
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A historic mass unit equal to 12 troy ounces or 5,760 grains used in older precious-metal and apothecary systems.
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Ton (assay) (US) [AT (US)]
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A historic mining unit representing a standard sample mass for reporting precious metal content, with mass varying by jurisdiction.
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Assay Certificate
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A document reporting the precious metal concentration, often expressed as ounces per assay ton.