Description
Return their mass-weighted component fraction.
Mixture proportions compare component amounts on a common basis, such as mass, volume, or count. Combining incompatible bases can give a numeric result without a meaningful mixture interpretation.
Return their mass-weighted component fraction.
When to use this tool
Use Recipe Spike Stock Mass Fraction when you need a supplied mixture or spike component on an explicit common basis.
How to use the tool and how it works
- Enter baseMass, baseFraction, stockMass, stockFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read mixtureFraction. Use the output convention below.
Require nonnegative base and stock masses with positive finite sum and both component fractions in [0, 1]. Return their mass-weighted component fraction.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| baseMass | Base Mass | Required. Finite number; minimum 0. |
| baseFraction | Base Fraction | Required. Finite number; minimum 0; maximum 1. |
| stockMass | Stock Mass | Required. Finite number; minimum 0. |
| stockFraction | Stock Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| mixtureFraction | Mixture Fraction | Required. Finite number. |
{
"input": {
"baseMass": 80,
"baseFraction": 0.1,
"stockMass": 20,
"stockFraction": 0.6
},
"output": {
"mixtureFraction": 0.2
}
}Limitations and assumptions
- Inputs must use a common mass basis; density, reaction, recovery, toxicity, and formulation suitability are not modeled.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Check the full balance, component units, and any density or concentration conversions separately.
References
Similar or alternative tools
- Mixture Single Component Shortfall
For nonnegative required and available component masses, return positive required-minus-available as shortfall and the reverse excess as surplus.
- Assay Dilution Transfer Factor
Return final/transferred as dilutionFactor and transferred/final as transferredFraction.