NIOSH Frequency Multiplier Lookup
RNLE frequency multiplier caller exact lifting frequency/duration/vertical-region reference key, independently matching protocol table; no interpolation between unsupported cells. Exact caller verified numeric reference; signed deviations retained. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.
Description
The NIOSH frequency multiplier depends on lifting frequency, duration and assessment conditions.
The NIOSH frequency multiplier depends on lifting frequency, duration and assessment conditions.1
An exact caller-table lookup supplies no installed official frequency table or task classification. Use this tool to compare an observation with an exact caller-supplied numeric reference.
When to use NIOSH Frequency Multiplier Lookup
Use this tool to compare an observation with an exact caller-supplied numeric reference. Establish the observation protocol, units, task and reference population or review criterion before entering measurements.
How to use NIOSH Frequency Multiplier Lookup and understand its results
- Establish the observation protocol, units, task and reference population or review criterion before entering measurements.
- Enter callerVerifiedNioshFrequencyKeys, callerVerifiedNioshFrequencyValues, queryNioshFrequencyKey, observedNioshFrequencyValue, using the field meanings and rules below, then run the tool.
- Read callerReferenceValue, signedObservedMinusReference. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerVerifiedNioshFrequencyKeys | Caller verified niosh frequency keys; caller assertion or measurement requiring independent evidence | list of string | Required |
| callerVerifiedNioshFrequencyValues | Caller verified niosh frequency values; caller assertion or measurement requiring independent evidence | list of number | Required |
| queryNioshFrequencyKey | Query niosh frequency key | string | Required |
| observedNioshFrequencyValue | Observed niosh frequency value | number | Required |
Enter aligned unique reference keys and multiplier values in [0,1], an exact key and an observed multiplier in [0,1]. Retrieve the matching caller value and subtract it from the observation. No official frequency/duration table is installed and missing keys fail.
difference=observedMultiplier−callerReference[indexOfExact(queryKey)] Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| callerReferenceValue | Caller Reference Value; follow the units, sign, ordering and evidence convention stated above | number |
| signedObservedMinusReference | Signed Observed Minus Reference; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"callerVerifiedNioshFrequencyKeys": [
"a",
"b"
],
"callerVerifiedNioshFrequencyValues": [
0.2,
0.4
],
"queryNioshFrequencyKey": "b",
"observedNioshFrequencyValue": 0.5
},
"output": {
"callerReferenceValue": 0.4,
"signedObservedMinusReference": 0.09999999999999998
}
}Limitations and assumptions
The numerical reference, unit basis and observation come from the caller. No authoritative regional table, standard edition, calibration or management rule is installed, retrieved or verified.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use NIOSH Coupling Multiplier Lookup for this related task: The NIOSH coupling multiplier represents the independently assessed quality of the hand-to-object connection.
Use NIOSH RWL Load Constant Base Calculator when its separate inputs and assumptions fit the question: The Revised NIOSH Lifting Equation multiplies a load constant by six task multipliers.
References
-
NIOSH Frequency Multiplier Lookup — tool.io
Similar or alternative tools
- NIOSH Coupling Multiplier Lookup
The NIOSH coupling multiplier represents the independently assessed quality of the hand-to-object connection.
- NIOSH RWL Load Constant Base Calculator
The Revised NIOSH Lifting Equation multiplies a load constant by six task multipliers.