How long does a batch record review take?

A clean, complete record reviews quickly, while deviations, missing signatures and corrections add follow-up that can take longer than the review itself. Time a sample of recent reviews and use the median.

What has to be in a batch record?

Production and quality records for the batch: build and test results, component lot traceability, labels used, deviations, and the release decision with signatures. Section 820.35 applies ISO 13485 Clause 4.2.5, so those records must be legible, identifiable and retrievable.

Why is cost per record lower at high volume?

Because fixed infrastructure spreads across more records. Labor per record does not fall with volume unless review minutes do, so check the labor share before treating a lower per-record figure as an efficiency gain.

Do reviewers read every batch record in full?

Release review checks the record against the batch release criteria, so a reviewer covers the pages that prove each requirement, including deviations and signatures. Sampling shortcuts belong in in-process checks, not in the review that authorizes release.

MedTech Manufacturing calculator

Batch Record Review Cost Calculator

Find what batch record review costs in total and per record before you budget QA review capacity. You need the record count, reviewer rate, scope share, review minutes and fixed cost.

What this calculator does

All-in and per-record cost of reviewing batch records for release, including reviewer labor and fixed review infrastructure.

Formula used

Records in scope = batch records × share reviewed ÷ 100
Reviewer labor cost = records in scope × review minutes per record ÷ 60 × QA reviewer rate
Total review cost = reviewer labor cost + fixed review infrastructure cost
All-in cost per record = total review cost ÷ batch records

Inputs explained

Batch Records to Review: Batch records on the register for the period, before the scope share.
QA Reviewer Hourly Rate: Loaded hourly cost of the QA reviewers who read and sign records.
Share of Records Reviewed: Share of the register this review cycle covers; enter 100 for all.
Fixed Review Infrastructure Cost: Period cost of the records system, hosting and validation share.
Review Minutes per Record: Average reviewer minutes per record, timed end to end.

How to use the result

Best suited to budgeting QA review hours for a product family, building a records system business case, comparing paper review with an eQMS workflow.
Excludes rework and correction time when review finds record errors; count that separately. The per-record figure divides by all batch records, so it falls when part of the register is reviewed.

Current U.S. benchmarks

U.S. manufacturing runs at 75.7% of capacity with new factory orders at $663B per month (Federal Reserve and Census, Aug 2026).
The U.S. has 8,825 medical equipment and supplies establishments employing about 308,388 workers (Census County Business Patterns, 2023).

Common questions

How long does a batch record review take? A clean, complete record reviews quickly, while deviations, missing signatures and corrections add follow-up that can take longer than the review itself. Time a sample of recent reviews and use the median.
What has to be in a batch record? Production and quality records for the batch: build and test results, component lot traceability, labels used, deviations, and the release decision with signatures. Section 820.35 applies ISO 13485 Clause 4.2.5, so those records must be legible, identifiable and retrievable.
Why is cost per record lower at high volume? Because fixed infrastructure spreads across more records. Labor per record does not fall with volume unless review minutes do, so check the labor share before treating a lower per-record figure as an efficiency gain.
Do reviewers read every batch record in full? Release review checks the record against the batch release criteria, so a reviewer covers the pages that prove each requirement, including deviations and signatures. Sampling shortcuts belong in in-process checks, not in the review that authorizes release.

Last reviewed 2026-10-01.