ASTM E1901-97

ASTM E1901-97 - 10.8.1997

1. Scope

1.1. This guide covers procedures for the contact ultrasonic examination of bulk materials or parts by transmitting pulsed ultrasonic waves into the material and observing the indications of reflected waves. This guide covers only examinations in which one search unit is used as both transmitter and receiver (pulse-echo). This guide includes general requirements and procedures that may be used for detecting discontinuities, locating depth and distance from a point of reference and for making a relative or approximate evaluation of the size of discontinuities as compared to a reference standard.

1.2 This guide complements Practice E114 by providing more detailed procedures for the selection and calibration of the inspection system and for evaluation of the indications obtained.

1.3 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

1.4 This guide 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 guide to establish the appropriate safety and health practices and detemine the applicability of regulatory limitations prior to use.

2. Referenced Documents

E1316-24	Standard Terminology for Nondestructive Examinations
E1158-14	Standard Guide for Material Selection and Fabrication of Reference Blocks for the Pulsed Longitudinal Wave Ultrasonic Testing of Metal and Metal Alloy Production Material (Withdrawn 2019)
E543-21	Standard Specification for Agencies Performing Nondestructive Testing
E428-08	Standard Practice for Fabrication and Control of Metal, Other than Aluminum, Reference Blocks Used in Ultrasonic Testing
E317-21	Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments
E127-20	Standard Practice for Fabrication and Control of Flat Bottomed Hole Ultrasonic Standard Reference Blocks
E114-20	Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing
ISO?9712	Non-destructive testing -- Qualification and certification of NDT personnel
NAS-410	NAS Certification and Qualification of Nondestructive Test Personnel Available from Aerospace Industries Association of America, Inc. (AIA), 1000 Wilson Blvd., Suite 1700, Arlington, VA 22209-3928, http://www.aia-aerospace.org.
ANSI/ASNT CP-189	ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
SNT-TC-1A	Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing Personnel Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.