ASTM E749/E749M-17
Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- Standard No.
- ASTM E749/E749M-17
- Release Date
- 2017
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM E749/E749M-17(2021)
- Latest
- ASTM E749/E749M-17(2021)
- Scope
- 1.1 This practice provides recommendations for acoustic emission (AE) monitoring of weldments during and immediately following their fabrication by continuous welding processes. 1.2 The procedure described in this practice is applicable to the detection and location of AE sources in weldments and in their heat-affected zone during fabrication, particularly in those cases where the time duration of welding is such that fusion and solidification take place while welding is still in progress. 1.3 The effectiveness of acoustic emission to detect discontinuities in the weldment and the heat-affected zone is dependent on the design of the AE system, the AE system verification procedure, the weld process, and the material type. Materials that have been monitored include low-carbon steels, low-alloy steels, stainless steels, and some aluminum alloys. The system performance must be verified for each application by demonstrating that the defects of concern can be detected with the desired reliability. 1.4 Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM E749/E749M-17 Referenced Document
- ASTM E1316 Standard Terminology for Nondestructive Examinations*， 2024-02-01 Update
- ASTM E543 Standard Practice for Agencies Performing Nondestructive Testing
- ASTM E569 Standard Practice for Acoustic Emission Monitoring of Structures During Controlled Stimulation
- ASTM E650 Standard Guide for Mounting Piezoelectric Acoustic Emission Sensors
- ISO 9712 Non-destructive testing — Qualification and certification of NDT personnel*， 2021-12-21 Update
ASTM E749/E749M-17 history
- 2021 ASTM E749/E749M-17(2021) Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- 2017 ASTM E749/E749M-17 Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- 2012 ASTM E749/E749M-12 Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- 2007 ASTM E749-07 Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- 2001 ASTM E749-01 Standard Practice for Acoustic Emission Monitoring During Continuous Welding
- 1996 ASTM E749-96 Standard Practice for Acoustic Emission Monitoring During Continuous Welding
