Description
Compare a supplied task load and uncertainty against a caller-established limit.
Occupational exposure calculations combine measured quantities, duration, reference conditions, weighting, and sampling support. Linear concentrations, squared acceleration, and logarithmic sound levels require different arithmetic. A supplied reference or limit is not automatically the applicable standard, and a local calculation is separate from a full exposure and safety assessment.
Compare a supplied task load and uncertainty against a caller-established limit.
When to use this tool
Use Manual Task Explicit Load Limit Gap when you need this particular sampling, duration, reference-unit, physical-exposure, or reporting-base term.
How to use the tool and how it works
- Enter actualLoad, suppliedLimit, measurementHalfwidth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read nominalMargin, conservativeMargin, exceeds, uncertain. Inspect exceeds, uncertain before interpreting the associated values.
For nonnegative actualLoad, suppliedLimit, and measurementHalfwidth return nominalMargin=limit-load and conservativeMargin=limit-load-halfwidth. Set exceeds only if load-halfwidth>limit and uncertain when load-halfwidth<=limit but load+halfwidth>limit.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| actualLoad | Actual Load | Required. Finite number; minimum 0. |
| suppliedLimit | Supplied Limit | Required. Finite number; minimum 0. |
| measurementHalfwidth | Measurement Halfwidth | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| nominalMargin | Nominal Margin | Required. Finite number. |
| conservativeMargin | Conservative Margin | Required. Finite number. |
| exceeds | True only when actualLoad-measurementHalfwidth is above suppliedLimit. | Required. Boolean. |
| uncertain | Supplied interval reaches or crosses the limit with an upper bound strictly above it. | Required. Boolean. |
{
"input": {
"actualLoad": 12,
"suppliedLimit": 15,
"measurementHalfwidth": 1
},
"output": {
"nominalMargin": 3,
"conservativeMargin": 2,
"exceeds": false,
"uncertain": false
}
}Limitations and assumptions
- Load, limit, and halfwidth need one unit. Exceeds means the full supplied interval is above the limit, not simply the nominal value; halfwidth is not a fitted confidence interval and the caller-supplied limit does not establish ergonomic safety or legal compliance.
- 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 complete hazard-specific assessment with calibrated measurements and the appropriate exposure model. Verify reference conditions, sampling coverage, weighting, denominator, and the applicable professional or regulatory method.
References
Similar or alternative tools
- Exposure Limit Supplied Units Crosswalk
Compare a measurement to an explicit limit after a supplied directed unit factor.
- Home Task Workspace Clearance Gap
For nonnegative openingWidth, objectWidth, handMargin, and alignmentUncertainty return nominalClearance=opening-object, usableClearance=nominal-2*handMargin-2*uncertainty, and fits when nominal>=2*(handMargin+uncertainty).