Quality Control Inspection Sheet

Who this is for

One batch, one sample, one sheet. Each characteristic is listed with the requirement you are working to and how it was checked, the number looked at and the number rejected go in, and the accepted figure and the pass rate work themselves out.

Quality inspectors, production and workshop supervisors, makers running small batches and anyone who has to show that a batch was checked before it went out and what was found when it was.

What this helps you track

• Which batch or lot was inspected, against which drawing or specification
• What was checked, how it was checked and how many of each were looked at
• How many were rejected, characteristic by characteristic
• The pass rate for the sample, and what happened to the parts that failed

How to use it

1. Fill in the part, the batch or lot number, the order reference and the sample size.
2. List the characteristics you are checking and write your own requirement or tolerance beside each.
3. Say how each was checked — gauge, visual, weight, fit, count — and which gauge if it matters.
4. Enter the number checked and the number rejected; accepted and the totals fill themselves in.
5. Say what was decided about any rejects in the last column and describe the fault in the notes.
6. Sign the sheet, attach it to the batch paperwork, and keep it with the order.

Formats

• Printable PDF (A4 and US Letter)
• Fillable PDF with form fields
• Fill in online, saved in your browser
• Excel / Google Sheets workbook

The printable is laid out inside a box that fits both A4 and US Letter, so the two files are identical and neither one is scaled. The fillable PDF has real form fields. The workbook uses plain formulas only — SUM, IF, COUNTIF and the like — so it opens in Excel, LibreOffice and Google Sheets without anything breaking, and every calculated cell is grey so you can see which figures it worked out.

How to print

Download the A4 or US Letter file to match the paper in your printer, open it in a PDF reader and print at 100% — not "fit to page", which shrinks the writing space. Both files leave a 14 mm margin, which clears the unprintable edge on home printers. To print the online version with your entries in it, use the Print this sheet button, which prints only the sheet and none of the page around it. More on printing.

Questions

Does the sheet say how big a sample should be?

No. Sampling plans and acceptance levels come from your own quality system, your customer's requirement or the standard you work to. There is a field for the sample size you used and nothing prescribed.

Where do the tolerances come from?

From your drawing, specification or customer order — you write them in. Nothing is prefilled, because a tolerance invented by a free form would be worse than useless.

How is the pass rate worked out?

Total checked minus total rejected, divided by total checked. It covers the whole sheet, so it reflects the sample as a whole rather than any one characteristic.

What should go in the last column?

What was decided about the rejected parts: reworked, scrapped, accepted under concession, returned to the supplier. Whoever is allowed to make that decision is set by your own procedure.