This standard is issued under the fixed designation E ; the number .. 3 The designations in parentheses following the terms indicate the ASTM standards. Standard Terminology for Nondestructive Examinations. Status: Withdrawn · Replaced by: ASTM E Buy this standard. Price: SEK. PDF. Add to cart. ASTM Ea Standard Terminology for Nondestructive – Free download as PDF File .pdf) or read online for free.
|Published (Last):||19 May 2015|
|PDF File Size:||9.72 Mb|
|ePub File Size:||1.77 Mb|
|Price:||Free* [*Free Regsitration Required]|
The Lamb wave can be generated only at particular values of frequency, angle of incidence and material thickness. With the exception of accept and reject, which retain the meaning found in most dictionaries, all the words used in the chart are de? Phillips ionization gauge—see e1361 vacuum gauge. Acoustic emission is the recommended term for general use.
Typical recording media used in holography are silver halide? It consists of two protons and two neutrons, and is identical to the nucleus of a helium atom.
Bayard-Alpert ionization gauge—see ionization vacuum gauge.
The MRTD is the minimum temperature difference between a standard periodic test pattern 7: NOTE 11—The numerical value for any permeability is meaningless unless the corresponding B or H excitation level is speci? NOTE 28—For a given target size, asfm MDTD is the minimum temperature difference between the target and its background at which e11316 observer can detect the target.
Rayleigh wave—an ultrasonic surface wave in which the particle motion is elliptical and the effective penetration is approximately one wavelength. For incremental permeabilities not aatm must the corresponding d-c B or H excitation level be speci? With the exception of accept and reject, which retain the meaning found in most dictionaries, all the words used in the chart are defined in Section A. NOTE 9—Several approaches to zone location are used, including independent channel zone location,?
Standard – Standard Terminology for Nondestructive Examinations ASTM E –
After exposure, the conversion screen is placed in contact with the image recorder. Other terms that have been used in AE literature include 1 stress wave emission, 2 microseismic activity, and 3 emission or acoustic emission with other qualifying modi? NOTE 18—It is not intended for use in judging size nor establishing acceptance limits of discontinuities.
The principal types are as follows: AE rms, n—the recti? It is, therefore, not proper to astmm a numerical setting on one instrument to that of another type.
Acoustic Emission The terms de? Coils of this type are also referred to as annular, circumferential, or feed-through coils.
ASTM E – 18a – Standard Terminology for Nondestructive Examinations
NOTE 3—A channel for examining? A form of dynamic leak test in which the entire enclosure or a large portion of its external surface is exposed to the tracer gas while the interior is connected to a leak detector with the objective of determining the existence of leakage.
IFOV may also be expressed as a solid angle in units of sr. See linear and mass attenuation coefficient. C-scan—an ultrasonic data presentation which provides a plan view of the test object, and discontinuities therein.
The common types are listed below: Current edition approved May 1, If it has been interpreted as relevant, the necessary subsequent evaluation will result in the decision to accept or reject the material. In an X-ray tube, the anode carries the target.
Standard Terminology for Nondestructive Examinations
See minimum detectable leakage rate. NOTE 26—The irradiance is independent of the distance from the source to the region of observation.
The Bayard-Alpert ionization gauge employs a tube with an electrode structure designed to minimize X-ray-induced electron emission from the ion collector. NOTE 30—The irradiance varies inversely with the square of the distance; a unique property of point sources. Synonymous terms are standard depth of penetration and skin depth.
A process control radiograph may be used to determine image quality parameters in circumstances of large or unusual test object geometry.