What Is This Tool?
This tool converts mass values from micrograms (µg), which measure extremely small weights useful in lab and environmental contexts, into US assay tons (AT), a specialized unit historically used in mining and precious metal assays.
How to Use This Tool?
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Enter the mass value in micrograms (µg) you wish to convert
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Select the target unit: ton (assay) (US) [AT (US)]
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Click the convert button to get the equivalent mass in assay tons
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Use the results for reporting concentration or analyzing precious metal content
Key Features
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Converts mass from microgram (µg) to ton (assay) (US) [AT (US)] accurately
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Ideal for mining, metallurgical, and precious metal reporting applications
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Supports interpretation of historical assay data and resource estimation
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Browser-based and easy to use with no installation required
Examples
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1,000,000 µg converts to approximately 0.0342857 Ton (assay) (US) [AT (US)]
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500,000 µg converts to approximately 0.0171429 Ton (assay) (US) [AT (US)]
Common Use Cases
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Pharmaceutical and chemical labs measuring trace substances in micrograms
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Mining industry reporting gold or silver concentrations per assay ton
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Contractual calculations for ore shipments based on metal content
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Translating historical assay data into modern standardized units
Tips & Best Practices
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Confirm the exact assay ton definition used in your jurisdiction to avoid ambiguity
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Use consistent units when comparing or reporting precious metal concentrations
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Be mindful of the small numerical values when converting very tiny masses
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Double-check conversions for precision in contractual or resource estimation contexts
Limitations
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The US assay ton's mass varies across jurisdictions, which can cause inconsistencies
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Very small input values convert to extremely small assay ton values requiring care
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Avoid ambiguity by specifying the exact assay ton mass when reporting
Frequently Asked Questions
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What is a microgram used for?
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A microgram measures very small masses often used in pharmaceutical dosing, analytical chemistry, and environmental monitoring where sub-milligram precision is necessary.
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Why is the US assay ton unit variable?
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The US assay ton has historically varied by jurisdiction and practice, so its exact mass is sometimes unclear without explicit specification.
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When should I convert micrograms to assay tons?
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Conversion is useful for reporting precious metal content on assay certificates, contractual ore settlement, and comparing historical mining data.
Key Terminology
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Microgram (µg)
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A unit of mass representing one millionth of a gram, used for very small weight measurements.
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Ton (assay) (US) [AT (US)]
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A historical mass unit in US mining that defines assay sample weights for precious metal content, with mass varying by region.
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Conversion Rate
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The factor used to translate microgram measurements into ton (assay) units, specifically 1 µg equals approximately 3.4285710367347e-8 assay tons.