Description
Calculate waterFraction=(freshMass-dryMass)/freshMass, dryMatterFraction=dryMass/freshMass, and ashFreeDryMass=dryMass-ashMass.
Specimen measurements and animal observations depend on a defined body part, reference value, unit, and observation window. A mass fraction, size ratio, or timing share summarizes those inputs. The counting and measurement conventions must stay explicit when comparing specimens or records.
Calculate waterFraction=(freshMass-dryMass)/freshMass, dryMatterFraction=dryMass/freshMass, and ashFreeDryMass=dryMass-ashMass.
When to use this tool
Use Animal Specimen Fresh Dry Mass Factor when you need to compare supplied specimen measurements or observation records under an explicit reference and denominator.
How to use the tool and how it works
- Enter freshMass, dryMass, ashMass. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read waterFraction, dryMatterFraction, ashFreeDryMass. Use the output convention below.
Calculate waterFraction=(freshMass-dryMass)/freshMass, dryMatterFraction=dryMass/freshMass, and ashFreeDryMass=dryMass-ashMass. Require freshMass>0 and 0<=ashMass<=dryMass<=freshMass.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| freshMass | Fresh Mass | Required. Finite number; strictly above 0. |
| dryMass | Dry Mass | Required. Finite number; minimum 0. |
| ashMass | Ash Mass | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| waterFraction | Water Fraction | Required. Finite number. |
| dryMatterFraction | Dry Matter Fraction | Required. Finite number. |
| ashFreeDryMass | Ash Free Dry Mass | Required. Finite number. |
{
"input": {
"freshMass": 100,
"dryMass": 30,
"ashMass": 5
},
"output": {
"waterFraction": 0.7,
"dryMatterFraction": 0.3,
"ashFreeDryMass": 25
}
}Limitations and assumptions
- Fractions are dimensionless and the mass difference retains the supplied mass unit. Preparation protocols and whether mass loss represents only water are not verified.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use compatible measurements and observation records to verify the chosen denominator and reference before interpreting a specimen comparison.
References
Similar or alternative tools
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