1 Introduction1.1 Need for inspection; 1.2 Types of inspection system; 1.3 Quality ofinspection; 1.4 Reliability of defect detection; 1.5 Benefits of nondestructivetest examination.viiviii2 Liquid Penetrant Inspection 72.1 Introduction; 2.2 Principles of penetrant inspection; 2.3 Characteristicsof a penetrant; 2.4 Water-washable system; 2.5 Post-emulsificationsystem; 2.6 Solvent-removable system; 2.7 Surface preparation andcleaning; 2.8 Penetrant application; 2.9 Development; 2.10 Advantagesand ...