GB/T 34885-2017Non-destructive testing—Electromagnetic ultrasonic testing—General principles (English PDF)

National Standard of the People's Republic of China

ICS

19.100

Classification

J 04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

• Foreword
• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 Method Summary
• 4.1 Detection principle
• 4.2 advantages and features
• 4.3 limitations
• 4.4 Application
• 4.5 Influencing factors
• 5 safety requirements
• 6 staff requirements
• 7 common test procedures
• 8 testing equipment and equipment
• 8.1 detection system
• 8.2 Electromagnetic Acoustic Probe
• 8.3 Electromagnetic ultrasound instrument
• 8.4 test block
• 8.5 Operating aids
• 8.6 Testing Equipment Maintenance and Calibration
• 9 test procedures
• 9.1 Preparation before testing
• 9.2 Instrument Debug
• 9.3 Detection System Calibration
• 9.4 test system review
• 9.5 In-service equipment testing
• 9.6 Manufacturing Process Testing
• 10 test results evaluation and processing
• 10.1 Thickness reading directly read the thickness value of the instrument
• 10.3 Unacceptable signs of discovery are dealt with as agreed by both parties to the contract
• 11 Test Record and Report
• 11.1 Test Record
• 11.2 Test Report
• Appendix A (informative) electromagnetic sound transducer coil common structure
• Appendix B (Normative) Pulse echo electromagnetic thickness measurement method
• Appendix C (Normative) Magnetic ultrasound oblique incident pulse echo detection method