ASTM E – Download as PDF File .pdf), Text File .txt) or read online. This standard is issued under the fixed designation E ; the number immediately 1 This practice is under the jurisdiction of ASTM Committee E07 on Nonde-. ASTM E – Designation: E – 09 Standard Practice for Ultrasonic Testing of Metal Pipe a.
|Published (Last):||13 December 2008|
|PDF File Size:||3.83 Mb|
|ePub File Size:||19.82 Mb|
|Price:||Free* [*Free Regsitration Required]|
ASTM E213 Standard for Ultrasonic Testing of Metal Pipe Tube
NOTE 8—Identical conditions include all instrument settings, mechanical motions, search unit position zstm alignment relative to the pipe or tube, liquid couplant, and any other factors that affect the performance of the examination. The methods used for cleaning and preparing the surfaces for ultrasonic examination shall not be detrimental to the base metal or the surface?
A method for achieving the required conditions is described below.
It is recognized that in normal machining practice, a radius will be generated. In cases where the type of examination, material dimensions or other properties make the use of spherically or?
It shall contain recordings of all standardizations and standardization checks and should be annotated to provide a positive correlation between examination record for each reject pipe or tube and the corresponding pipe or tube. Restandardize and reexamine the material if necessary, in accordance with the following procedures, unless otherwise speci? Make these checks prior to any examination run, prior to equipment shutdown after an examination run, and at least every four hours during continuous equipment operation.
The SI equivalents are in parentheses and may be approximate. The outer surface notch signal subsequently used for standardization should then be from the node immediately beyond the inner surface notch signal to obtain the best condition for attempting to equalize both gated signals in the following step i.
The fractional percentage change in notch A2.
ASTM E – 14E1 – Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing
The practice or standard used and its applicable revision shall be identi? This is necessary to ensure detection of discontinuities that are as long as the notches in spite of their random locations with respect to the scan path, See Annex A2.
The SI equivalents are in parentheses and may be approximate. These procedures have been successful with smaller sizes. The instrument shall be capable of this pulse repetition rate without false indications due to spurious re?
The values stated in inch-pound units are to be regarded as standard. 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.
Record the peak amplitude of the signal from the inner surface notch. The response from the inner and outer surface notches should be as nearly equal as possible. Summary of Practice 4. NOTE 7—Distance-Amplitude Correction— A method of compensating for the reduction in ultrasonic signal amplitude as a function of material sound-path distance may be employed.
This signal may be observed, but not gated, as a supplement to the required checking of the reference standard to provide increased assurance that the equipment is functioning properly. Record all search unit position settings, instrument control settings and standardization signal levels on an examination record sheet. The applicable edition of Practice E shall be speci? The supplier shall maintain a report of the examination on?
NOTE 11—Rejected pipe or tubes may be reworked in a manner acceptable to the purchaser. This may be in the form of a strip chart recording or computerized data of the ultrasonic instrument output during the examination. Axial scanning with circumferential indexing may be used to provide equivalent coverage. These procedures are intended to ensure that proper refraction angles and beam shapes are used to provide full volume coverage of pipes and tubes, including those with low ratios of outside diameterto-wall thickness, and to avoid spurious signal responses when examining small-diameter, thin-wall tubes.
Originally approved in Certain combinations of search unit size, frequency, thin wall thicknesses, and small diameters could cause generation of unwanted sound waves that may produce erroneous test results.
This depends upon the intercepting beam width to notch length. Rust inhibitors, softeners, and wetting agents may be added to the couplant.
Alternatively, the search unit may be angulated in a plane perpendicular to the tube axis to produce the incidence angle. Specific techniques of the ultrasonic method to which this practice applies include pulse-reflection techniques, both contact and non-contact for example, as described in Guide Eand angle e23 immersion techniques. For many materials a satisfactory initial offset distance is 1?
For thick-wall tubes a lower refraction f213 may be required for examination of the entire thickness 5. The incident and refracted beams in these cases are pictured as being generated by a cylindrically focused immersion search unit.
Annex A2 describes how maximum allowable pitch for stable detection may be determined from the length of the longitudinal reference notches and the minimum beam length of the search units.
ASTM E – 14e1 Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing
Interpretation of Results Any of the apparatus types listed in Note 1 4. 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.
This standard does not purport to address all of the safety concerns, if any, associated with its use. NOTE 12—Care should be exercised to ensure asmt reworking a pipe or tube does not change its acceptability with respect to other requirements of the material speci? Then the following steps shall be taken, depending upon the nature of the failure. These procedures are intended to ensure that proper beam angles and beam shapes are used to provide full volume coverage of pipes and tubes, including those with low ratios of outside diameter-to-wall thickness, and to avoid spurious signal responses when examining small-diameter, thin-wall tubes.
The following selection and standardization procedure shall be used unless an alternative is approved asfm the contracting agency. For material with an outside diameterto-thickness ratio less than 7, a lower refracted angle or corresponding parameters for non-contact techniques must be used to ensure intersection with the inside surface.
Basis of Application 6.