Why does review and rework add so much time?

Each record usually passes through drafting, checking and signature, and a revision can restart the loop. Measure the allowance from your own package history instead of assuming a small share.

What counts as a document here?

Anything issued as its own controlled record: a data sheet, certificate, test report, weld map or traveler. Attachments and appendices stay with their parent document so the count matches your completion log.

What does a negative hours over the window mean?

The work fits inside the window with capacity to spare. Use the margin for rework risk, or pull some records work earlier so the handover does not depend on it.

Where does the completion rate come from?

Use a recent time study, or divide documents completed by hours charged across the last three packages. Update the rate when the package mix changes, because data-heavy packages log far slower than forms.

Nuclear & Critical Infrastructure Manufacturing calculator

Nuclear Documentation Burden Calculator

Estimate the hours to prepare quality records for a nuclear component package, including the review, signature and rework loop. Enter the document count, completion rate, allowance and the hours your handover window allows.

What this calculator does

Documentation hours to prepare a records set, with the review and rework allowance priced in and the fit against your planning window.

Formula used

Base documentation hours = documents to prepare ÷ documents per hour
Review and rework hours = base documentation hours × review and rework allowance ÷ 100
Required documentation hours = base documentation hours + review and rework hours
Hours over the window = required documentation hours − available documentation hours
Window use = required documentation hours ÷ available documentation hours × 100, blank at zero

Inputs explained

Documents to Prepare: Records or packages to prepare for the build.
Documentation Completion Rate: Documents the team completes in one hour.
Review, Signature, and Rework Allowance: Added for review, signature, and rework cycles.
Available Documentation Hours: Hours the schedule allows before handover.

How to use the result

Best suited to sizing records work before handover, comparing rework allowances across packages, checking a shift plan against the window.
Excludes training, system setup and travel time for document specialists. A mixed package of short forms and long reports will deviate from the blended rate.

Common questions

Why does review and rework add so much time? Each record usually passes through drafting, checking and signature, and a revision can restart the loop. Measure the allowance from your own package history instead of assuming a small share.
What counts as a document here? Anything issued as its own controlled record: a data sheet, certificate, test report, weld map or traveler. Attachments and appendices stay with their parent document so the count matches your completion log.
What does a negative hours over the window mean? The work fits inside the window with capacity to spare. Use the margin for rework risk, or pull some records work earlier so the handover does not depend on it.
Where does the completion rate come from? Use a recent time study, or divide documents completed by hours charged across the last three packages. Update the rate when the package mix changes, because data-heavy packages log far slower than forms.

Last reviewed 2026-10-01.