Copper Alloy Tin Percent
Report measured tin share on the copper-plus-tin subsystem and incomplete declared assay closure; undeclared material is not automatically copper or an alloy identity.
Description
Tin's share of measured copper-plus-tin differs from tin's percentage of the complete specimen.
Tin's share of measured copper-plus-tin differs from tin's percentage of the complete specimen. Reporting assay closure makes unmeasured material visible instead of assuming it is copper.1
Report measured tin share on the copper-plus-tin subsystem and incomplete declared assay closure; undeclared material is not automatically copper or an alloy identity.
When to use Copper Alloy Tin Percent
Use this tool to report measured tin share on the copper-plus-tin subsystem and incomplete declared assay closure; undeclared material is not automatically copper or an alloy identity.
Prepare the artifact, site or survey measurements and any independently established calibration or model choices. Keep paired observations aligned and confirm units and coordinate conventions.
How to use Copper Alloy Tin Percent and understand its results
- Prepare the artifact, site or survey measurements and any independently established calibration or model choices. Keep paired observations aligned and confirm units and coordinate conventions.
- Enter tinAssayMassPercent, copperAssayMassPercent, otherDeclaredMassPercent using the field table and calculation rules, then run the tool.
- Read tinPercentOfMeasuredCopperTin, declaredAssayTotalMassPercent, undeclaredMassPercent. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| tinAssayMassPercent | Tin assay mass percent | number | Required |
| copperAssayMassPercent | Copper assay mass percent | number | Required |
| otherDeclaredMassPercent | Other declared mass percent | number | Required |
Enter nonnegative tin, copper and other declared mass percentages, with total at most 100 and copper plus tin positive. Return normalized tin percentage within the measured Cu–Sn subsystem, declared assay total and undeclared remainder.
tinSubsystemPercent = 100 tin/(copper+tin); undeclared = 100−declaredTotal Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| tinPercentOfMeasuredCopperTin | Tin percent of measured copper tin | number |
| declaredAssayTotalMassPercent | Declared assay total mass percent | number |
| undeclaredMassPercent | Undeclared mass percent | number |
{
"input": {
"tinAssayMassPercent": 8,
"copperAssayMassPercent": 72,
"otherDeclaredMassPercent": 10
},
"output": {
"tinPercentOfMeasuredCopperTin": 10,
"declaredAssayTotalMassPercent": 90,
"undeclaredMassPercent": 10
}
}Limitations and assumptions
The subsystem normalization is not a complete alloy composition or identity. Assay uncertainty and undeclared constituents are not inferred.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Faience Glass Composition Ratio Tool: Convert measured glass oxide mass percentages to soda/silica and lime/silica molar ratios using supplied oxide molar masses; no recipe, phase or provenance classification. For a complementary task, use Slag Iron Yield: Balance elemental iron in declared feed, slag and other loss to a recovered-iron scenario; elemental versus oxide assay basis must be consistent, and slag composition alone cannot establish yield.
References
-
Copper Alloy Tin Percent — tool.io
Similar or alternative tools
- Faience Glass Composition Ratio Tool
Convert measured glass oxide mass percentages to soda/silica and lime/silica molar ratios using supplied oxide molar masses; no recipe, phase or provenance classification.
- Slag Iron Yield
Balance elemental iron in declared feed, slag and other loss to a recovered-iron scenario; elemental versus oxide assay basis must be consistent, and slag composition alone cannot establish yield.