Inspection Work Instruction Template
An inspection work instruction makes sure two inspectors check the same part the same way. This template gives you a one-page, controlled-style document covering scope, gages, sampling, characteristics and the reaction plan.
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Inspection Work Instruction Template
Inspection Work Instruction
Company: Acme Precision Ltd Document number: QI-WI-0214 Revision: B Effective date: 2026-10-20 Part: PN-48213 Housing, machined Inspection stage: Final
Sampling
Single sampling, ANSI/ASQ Z1.4 level II, AQL 1.0, per lot
Gages and Equipment
0-25 mm micrometer (cal. ID MIC-014), bore gage set (BG-007), surface plate and height gage, thread plug gage M8x1.25 6H
Only use gages within their calibration due date. Do not use a gage with a missing or expired calibration label.
Method
Clean parts before measuring. Allow parts to reach room temperature. Measure bore at two depths and two angles, record the worst case.
Characteristics to Inspect
| Char # | Characteristic | Requirement | Gage | Frequency |
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 |
Reaction Plan
On any failure stop inspection, tag the lot HOLD, notify the quality engineer and open a nonconformance report. Do not rework without approval.
Approvals
Add pictures or marked-up drawing views in your controlled copy. Keep revision control in your document system. Starting point only, adapt it to your quality system.
Link inspection instructions to ERP inspection plans
Optional: see how documents and system inspection plans can stay in step.
Optional. The tool and every export work without this. No spam.
How to use the template
Fill in the document control fields first: number, revision, effective date and part. Pick the inspection stage, then state the sampling rule exactly as the control plan or customer demands. List the gages by name and ID, and write method notes that remove ambiguity, such as cleaning, temperature and where to measure. Complete the characteristics table with requirement, gage and frequency, then export to PDF or Word for document control approval.
What a good instruction contains
Inspectors need five things: what to check, against what requirement, with which tool, how many and how often, and what to do when something fails. Each should be answerable without calling the quality engineer. Keep sentences short and use measured values. Where a feature is tricky, such as a thread or a surface finish, add a photo or a sketch. Align characteristic numbers with the drawing balloons so records match.
- Scope: part, stage and applicable revisions
- Characteristics linked to drawing balloon numbers
- Named gages with calibration status checks
- Sampling plan and frequency stated exactly
- Reaction plan with who to notify
Reaction plan and records
The reaction plan is the part auditors read first. It should say to stop, segregate and tag the suspect material, notify a named role, and not return anything to flow without a documented decision. Link the instruction to the record the inspector must fill, such as an inspection record or lot acceptance log, and to the nonconformance form. If you use an ERP quality module, name the inspection plan or characteristic group that corresponds to this document.
Common mistakes
Writing instructions that repeat the drawing instead of adding method detail is the usual weakness. Another is leaving sampling vague, such as check a few parts. Instructions also drift out of date when the drawing revision changes, so list the revision in the header and review on every engineering change. Do not put approvals as printed names only, use signatures or controlled electronic approval from your document system.
Frequently Asked Questions
What is the difference between an inspection instruction and a control plan?
A control plan lists characteristics, methods and reactions for a whole process. An inspection instruction is the operational document an inspector follows at the bench for one part or family. The instruction should be consistent with the control plan.
Does an inspection instruction need to be controlled?
Yes, under most quality systems including ISO 9001 and AS9100. It needs a unique number, revision, approval and a way to prevent use of obsolete copies at the point of use.
How detailed should the method be?
Detailed enough that a trained but new inspector gets the same result. Include where to measure, how many points, cleaning and temperature conditions, and any special fixture or setup.
Can one instruction cover several parts?
Yes for a part family with the same characteristics and gages, if the characteristics table lists the differences per part. Otherwise write separate instructions to avoid mistakes.
If inspection instructions are separate from your ERP inspection plans, Netray can help keep them aligned so the same characteristics drive both the document and the system.
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