Description
Return ideal-gas standard/actual volume ratio.
Gas-sampling conversions distinguish actual from reference volume, wet from dry composition and total from partial pressure. A supplied ideal-gas or constant-flow factor requires compatible units and state definitions without validating actual sampling conditions or exposure.
Return ideal-gas standard/actual volume ratio.
When to use this tool
Use Standard Flow Volume Ratio when checking the stated gas state, sampling-volume or flow-basis conversion.
How to use the tool and how it works
- Enter actualTemperature, standardTemperature, actualPressure, standardPressure. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read standardToActualVolume. Use the output convention below.
Return ideal-gas standard/actual volume ratio. Require positive absolute temperatures and pressures; standardToActualVolume = (standardTemperature/actualTemperature)*(actualPressure/standardPressure).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| actualTemperature | Actual Temperature | Required. Finite number; strictly above 0. |
| standardTemperature | Standard Temperature | Required. Finite number; strictly above 0. |
| actualPressure | Actual Pressure | Required. Finite number; strictly above 0. |
| standardPressure | Standard Pressure | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| standardToActualVolume | V_standard/V_actual; multiply actual volume by this factor for standard volume at fixed amount. | Required. Finite number. |
{
"input": {
"actualTemperature": 300,
"standardTemperature": 250,
"actualPressure": 100,
"standardPressure": 100
},
"output": {
"standardToActualVolume": 0.8333333333333334
}
}Limitations and assumptions
- This factor multiplies actual volume to give standard volume for fixed amount; no universal standard state or real-gas correction is selected.
- 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
Use verified absolute pressure/temperature, humidity and flow calibration with the appropriate real-gas/sampling model when ideal assumptions are inadequate.
References
Similar or alternative tools
- Ozone Mixing Ratio Mass Density Term
Return ideal-gas ozone molar and mass density.
- Gas Sample Humidity Volume Correction
Return dry-volume equivalent from wet sample volume.