Defects, inspection records and sampling
Recognize and classify defects using your inspection plan, inspect under the right conditions, write inspection records that stand up later, and understand what a sampling plan does and doesn't tell you. Includes tally sheets and simple Pareto reading from fictional inspection data.
- Level
- Beginner
- Length
- About 50 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 1 Oct 2026
Skills you'll practise
- Classify a defect using the definitions in the inspection plan, and escalate when it doesn't fit
- Use limit samples and the specified viewing conditions for visual inspection
- Complete and correct an inspection record so it shows what was actually checked and found
- Apply a sampling plan's accept/reject numbers and explain why a passed sample doesn't make known defects acceptable
- Summarize defect tallies to find the biggest category and report a trend
Course outline
- 1.Defects, inspection records and samplingVideo · 2 min
- 2.Recognizing and classifying defectsLesson · 17 min
- 3.Inspection records that stand up laterLesson · 16 min
- 4.Sampling plans and defect dataLesson · 17 min
- 5.Defects, inspection records and sampling: knowledge checkKnowledge check · 16 questions
- 6.Defects, inspection records and sampling: practical exerciseKnowledge check · 1 question
- 7.Final exam7 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- ASQ: ANSI/ASQ Z1.4 and Z1.9 sampling plan standards
- ISO 2859-1: Sampling procedures for inspection by attributes, Part 1 (AQL-indexed lot-by-lot schemes)
- ISO 9001:2015 Quality management systems: Requirements (clauses cited: 7.5 documented information, 8.5.2 identification and traceability, 8.7 control of nonconforming outputs)
- Your site's quality manual, inspection plans, drawings and nonconformance procedure (these govern)
See it with your own jobs and topics
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