The objective of this Standard is to define eddy current testing techniques for detection of surface breaking and near surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones, base material).
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Personnel qualification
5 Written procedures
6 General applications
6.1 Essential variables
6.2 Additional information
6.3 Surface conditions
6.4 Equipment
6.4.1 Instrumentation (excluding probe)
6.4.1.1 General
6.4.1.2 Frequency
6.4.1.3 Signal display
6.4.1.4 Phase control
6.4.2 Surface probes
6.4.2.1 Probes for measuring coating thickness and material evaluation relative to calibration block
6.4.2.2 Probes for testing of welds
6.4.3 Accessories
6.4.3.1 Calibration block
6.4.3.2 Non-conductive flexible strips
6.4.3.3 Probe extension cables
6.4.3.4 Remote display and control
6.4.4 Systematic equipment maintenance
6.4.4.1 Calibration certificate
6.4.4.2 Functional check
6.5 Test procedure
6.5.1 Evaluation mode
6.5.2 Procedure for measuring coating thickness and material comparison relative to calibration block
6.5.3 Procedure for testing welds in ferritic materials
6.5.3.1 Frequency
6.5.3.2 Calibration
6.5.3.3 Scanning
6.6 Detectability of discontinuities
6.7 Procedure for testing welds in other materials
