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Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing
Automatische name übersetzung:
Standard Praxis für die Ultraschall-Puls-Echo Senkrechteinschallung Kontakt Testing
NORM herausgegeben am 1.12.2015
Bezeichnung normen: ASTM E114-15
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.12.2015
SKU: NS-623603
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
contact, examination, nondestructive testing, pulse-echo, straight-beam, ultrasonic ,, ICS Number Code 19.100 (Non-destructive testing)
Significance and Use | ||||||||||||||
5.1 This practice employs the use of normal-incident, or straight beam, longitudinal wave ultrasound for the detection and evaluation of discontinuities in materials requiring volumetric examination. 5.2 Although not all requirements of this practice can be applied universally to all inspection situations and materials, it does provide the basis for establishing contractual criteria between suppliers and purchasers of materials for performing contact longitudinal wave pulse-echo examination and may be used as a guide for writing detailed procedures for particular applications. 5.3 Types of information that may be obtained from the pulsed-echo straight-beam practice are as follows: 5.3.1 Apparent discontinuity size (see Note 1) by comparison of the signal amplitudes from the test piece to the amplitudes obtained from a reference standard. 5.3.2 Depth location of discontinuities by calibrating the horizontal scale of the A-scan display. 5.3.3 Material properties as indicated by the relative sound attenuation or velocity changes of compared items. 5.3.4 The extent of bond and unbond (or fusion and lack of fusion) between two ultrasonic conducting materials if geometry and materials permit. Note 1: The term “apparent” is emphasized since true size
depends on orientation, composition, and geometry of the
discontinuity and equipment limitations.
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1. Scope | ||||||||||||||
1.1 This practice2 covers ultrasonic examination of materials by the pulse-echo method using straight-beam longitudinal waves introduced by direct contact of the search unit with the material being examined. 1.2 This practice shall be applicable to development of an examination procedure agreed upon by the users of the document. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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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