Description
Exact yields a closed point at reportedValue; censored yields [0,limit) or [0,limit].
A food measurement can require calibration, recovery correction or a defined reference state. A corrected value or reporting envelope is only one analytical step and does not independently establish contamination status, shelf life or safety.
Exact yields a closed point at reportedValue; censored yields [0,limit) or [0,limit].
When to use this tool
Use Food Lab Result Censored Limit Envelope when you need the specified laboratory or bench-measurement term.
How to use the tool and how it works
- Enter qualifier, reportedValue, limit. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read lower, upper, lowerInclusive, upperInclusive. Inspect lowerInclusive, upperInclusive before interpreting the associated values.
Require nonnegative reportedValue/limit and exact, less-than or not-greater-than qualifier. Exact yields a closed point at reportedValue; censored yields [0,limit) or [0,limit].1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| qualifier | Qualifier | Required. Text; one of "exact", "less-than", "not-greater-than"; maximum UTF-16 length 8192. |
| reportedValue | Exact value only under exact qualifier; ignored when constructing censored bounds. | Required. Finite number; minimum 0. |
| limit | Censoring upper bound under the selected qualifier. | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| lower | Lower | Required. Finite number. |
| upper | Upper | Required. Finite number. |
| lowerInclusive | Lower Inclusive | Required. Boolean. |
| upperInclusive | Upper Inclusive | Required. Boolean. |
{
"input": {
"qualifier": "less-than",
"reportedValue": 0,
"limit": 2
},
"output": {
"lower": 0,
"upper": 2,
"lowerInclusive": true,
"upperInclusive": false
}
}Limitations and assumptions
- The nonnegative envelope is a reporting convention, not a measurement confidence interval. reportedValue is ignored for censored bounds and a zero strict limit yields an empty interval.
- 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 a validated analytical method and the appropriate safety assessment. Review reference conditions, units, uncertainty, recovery and product-specific interpretation rather than inferring safety from a single number.
References
Similar or alternative tools
- Cold Chain Clock Uncertainty Term
Return max(0,endLower-startUpper) and endUpper-startLower.
- Food Sample Blank Netmass Correction
Subtract tare and blank, then divide by sample mass.