Description
Compare review timing with a fixed-day anniversary.
Laboratory-safety administration tracks inspection records, equipment counts, training coverage and supplied policy limits. A local balance or current-status flag can reveal a record gap while actual equipment condition, training competence and adequate protection require independent verification.
Compare review timing with a fixed-day anniversary.
When to use this tool
Use Biosafety Document Review Anniversary Offset when checking the stated laboratory-safety record, timing, capacity or inventory convention.
How to use the tool and how it works
- Enter lastReviewDay, intervalDays, actualReviewDay. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read nominalDay, deviationDays, early. Inspect early before interpreting the associated values.
Compare review timing with a fixed-day anniversary. Require whole intervalDays >= 1 and actualReviewDay >= lastReviewDay; nominalDay = last+interval, deviationDays = actual-nominal, early means strict actual < nominal.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| lastReviewDay | Last Review Day | Required. Safe integer. |
| intervalDays | Interval Days | Required. Safe integer; minimum 1. |
| actualReviewDay | Actual Review Day | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| nominalDay | Nominal Day | Required. Safe integer. |
| deviationDays | Deviation Days | Required. Safe integer. |
| early | Early | Required. Boolean. |
{
"input": {
"lastReviewDay": 100,
"intervalDays": 365,
"actualReviewDay": 470
},
"output": {
"nominalDay": 465,
"deviationDays": 5,
"early": false
}
}Limitations and assumptions
- This is numeric day-count arithmetic, not calendar-year/month recurrence or a verified legal review 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
Inspect actual equipment and verified records under the applicable procedures; use qualified risk assessment and professional judgment to determine adequate protection and actual authorization.
References
Similar or alternative tools
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