ASTM E797/E797M-15
Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- Standard No.
- ASTM E797/E797M-15
- Release Date
- 2015
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM E797/E797M-21
- Latest
- ASTM E797/E797M-21
- Scope
5.1 The techniques described provide indirect measurement of thickness of sections of materials not exceeding temperatures of 93°C [200°F]. Measurements are made from one side of the object, without requiring access to the rear surface.
5.2 Ultrasonic thickness measurements are used extensively on basic shapes and products of many materials, on precision machined parts, and to determine wall thinning in process equipment caused by corrosion and erosion.
5.3 Recommendations for determining the capabilities and limitations of ultrasonic thickness gages for specific applications can be found in the cited references.7,8
1.1 This practice2 provides guidelines for measuring the thickness of materials using the contact pulse-echo method at temperatures not to exceed 93°C [200°F].
1.2 This practice is applicable to any material in which ultrasonic waves will propagate at a constant velocity throughout the part, and from which back reflections can be obtained and resolved.
1.3 Units—The values stated in either SI units or inch-pound 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 non-conformance with the standard.
1.4 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.
ASTM E797/E797M-15 Referenced Document
- ASTM E1316 Standard Terminology for Nondestructive Examinations
- ASTM E317 Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse- Echo Examination Instruments and Systems Without the Use of Electronic Measurement Instruments
- ASTM E494 Standard Practice for Measuring Ultrasonic Velocity in Materials
- ASTM E543 Standard Practice for Agencies Performing Nondestructive Testing
- ISO 9712 Non-destructive testing — Qualification and certification of NDT personnel
ASTM E797/E797M-15 history
- 2021 ASTM E797/E797M-21 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- 2015 ASTM E797/E797M-15 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- 2010 ASTM E797/E797M-10 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- 2005 ASTM E797-05 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- 1995 ASTM E797-95(2001) Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
- 2001 ASTM E797-95 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
