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Chapter 16: C. Inspection Planning and Procedures 169
Operator fallibility
• Identification of the situation
• Analysis of alternative methods
• Selection of equipment
• Application/measurement
Measuring equipment
• Sensitivity
• Accuracy and precision
• Consistency
• Repeatability
• Gage or instrument wear
Environmental conditions
• Temperature
• Vibration
• Structural instability
• Humidity
• Factors of atmospheric pollution
• Atmospheric pressure
• Gravity
Figure 16.3 Factors affecting the measuring process.
Part III.C.2
Inspector Qualifications
Basic requirements for inspection personnel include (Raz 1992):
1. The ability to perform the relevant measurements
2. Understanding of product specifications to the point of being capable
of determining product quality
3. Basic mathematical skills for recording and analyzing data
4. Basic understanding of statistical concepts needed for sampling
inspection and process characterization
5. Knowledge of measurements and measurement technology
6. Understanding of the company’s inspection policies, inspection
procedure, products, materials, and processes
Inspector Training
Training refers to the formal procedures used to improve job-related capability.
Programs that are designed for inspection personnel training should address
three major aspects: