Description
Return a specimen collection interval's width and midpoint.
Biobank quantity and time budgets use explicit parent/aliquot, dead-volume, clock and billing conventions. A remainder, delay envelope or fee term can reconcile supplied records without establishing specimen stability, safe use or actual contractual rights.
Return a specimen collection interval's width and midpoint.
When to use this tool
Use Specimen Collection Time Span when checking the stated biobank volume, timing, precision or fee convention.
How to use the tool and how it works
- Enter earliest, latest. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read span, midpoint. Use the output convention below.
Return a specimen collection interval's width and midpoint. Require latest >= earliest; span = latest-earliest, midpoint = earliest/2+latest/2.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| earliest | Earliest | Required. Finite number. |
| latest | Latest | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| span | Span | Required. Finite number. |
| midpoint | Midpoint | Required. Finite number. |
{
"input": {
"earliest": 10,
"latest": 14
},
"output": {
"span": 4,
"midpoint": 12
}
}Limitations and assumptions
- The time coordinates are supplied; precision bounds are not confidence limits or proof of actual collection timing.
- 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 collection/storage records, suitable quality controls and governing billing/permission rules for actual specimen or payment decisions.
References
Similar or alternative tools
- Biobank Specimen Collection Processing Delay
Return clock-corrected collection/processing delays.
- Biobank Thaw Window Explicit Gap
Check a supplied thaw-event interval against an allowed window.