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Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
Automatische name übersetzung:
Standard Praxis für Dickenmessung durch Hand Ultraschall Puls-Echo Kontakt-Methode
NORM herausgegeben am 1.6.2010
Bezeichnung normen: ASTM E797/E797M-10
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.6.2010
SKU: NS-48023
Zahl der Seiten: 7
Gewicht ca.: 21 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
contact examination, nondestructive testing, pulse-echo, thickness measurement, ultrasonics, Thickness, Ultrasonic testing, ICS Number Code 19.100 (Non-destructive testing)
Significance and Use | ||||||||
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. 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. Recommendations for determining the capabilities and limitations of ultrasonic thickness gages for specific applications can be found in the cited references. , |
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1. Scope | ||||||||
1.1 This practice 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. |
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2. Referenced Documents | ||||||||
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