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.
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ASTM E213 Standard for Ultrasonic Testing of Metal Pipe Tube
Alternatively, the search unit may be angulated in a plane perpendicular to the tube ast to produce the incidence angle. In cases where the type of examination, material dimensions or other properties make the use of spherically or?
Adjust the gain control to set the peak response at this re? Make these checks prior to any examination run, prior to equipment shutdown after an examination run, and at least every hour during continuous equipment operation. This standard does not purport to address all of the safety concerns, if any, associated with its use.
These procedures have been used successfully for smaller sizes, however, and may be specified upon contractural agreement between the using parties. Some differences in this procedure are required, as described below, depending upon whether the contact or immersion technique is employed.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Artificial reflectors consisting of longitudinal, and, when specified by the using party or parties, transverse reference notches placed on the surfaces of a reference standard are employed as the primary means of standardizing the ultrasonic system.
ASTM E Standard for Ultrasonic Testing of Metal Pipe Tube This practice covers a procedure for detecting discon- tinuities in metal pipe and steel tubing during a volumetric exami- nation using ultrasonic methods. Coverage shall be based upon the maximum effective size of the search unit, the pulse density for each instrument channel and the helix.
This practice covers a procedure for detecting discon- tinuities in metal pipe and steel tubing during a volumetric exami- nation using ultrasonic methods. 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.
Rotate the tube without translation that is, without motion along its longitudinal axis and observe on the instrument display screen the motion of the notch signal away from any residual interface signal.
ASTM E213 – 14E1
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. If transverse as well as longitudinal examination is desired, a procedure for employing transverse notches is provided. Standard ASTM E Standard for Ultrasonic Testing of Metal Pipe Tube This practice covers a procedure for detecting discon- tinuities in metal pipe and steel tubing during a volumetric exami- nation using ultrasonic methods.
The instrument shall be capable of this pulse repetition rate without false indications due to spurious re? A method for achieving the required conditions is described below. NOTE 9—If a requirement exists for both longitudinal and transverse notches the following three options are available: It is the responsibility of the user of this standard to establish appro1 This practice is under asstm jurisdiction of ASTM Aastm E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E NOTE 11—Rejected pipe or tubes may be reworked in a manner acceptable to the purchaser.
For small tubes, support mechanisms must be used in the examination station to prevent any transverse motion with respect to the search unit beam during scanning. On large diameter or heavy wall pipe and tubing, if the inner and outer surface notch amplitude cannot be made equal because of material soundpath distance and inside diameter curvature, a separate rejection level asrm be established for the inner and outer surface notches.
Direct the search unit beam in one circumferential direction. The applicable edition of Practice E shall be speci? If, upon ultrasonic reexamination of the reworked pipe or tube, no rejectable indications are detected, the material should be considered as having passed the ultrasonic examination. The instrument pulse repetition rate shall be capable of being adjusted to a sufficiently high value to ensure notch detection at the scanning rate employed.
Artificial discontinuities astk of longitudinal reference notches are employed as the primary means of calibrating the ultrasonic system. Interpretation of Results No acceptable standardization repeatability can be provided in that case.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine e13 applicability of regulatory limitations prior to use. The amplitude should decrease and increase as successive re? This is often a convenient initial adjustment during system standardization. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
The fractional percentage change in notch A2. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
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. NOTE axtm amplitude of indications obtained from reference notches may not e13 linearly proportional to s213 depth.
Active view current version of standard. Run the reference standard with random initial translational and angular orientation through the examination station at full speed and scan pitch and observe, during asrm runs of the standard, the stability of the gated alarm signals from all notches in the reference standard on a strip-chart recorder or other means for observing signal amplitude stability or alarm function.
ASTM E – 14e1 Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing
The procedure inAnnexA2 may be used to determine the helical ast pitch. The incident and refracted beams in these cases are pictured as being generated by a cylindrically focused immersion search unit. If such a signal does not exist, make more frequent equipment standardization checks. NOTE 3—In the contact method, some couplants result in better ultrasonic transmission when the tubing is precoated several hours before the examination.
NOTE 7—Distance-Amplitude Correction— A method of compensating for 2e13 reduction in ultrasonic signal amplitude as a function of material sound-path distance may be employed. These may be specified upon contractual agreement between the using parties. Restandardize and reexamine the material if necessary, in accordance with the following procedures, unless otherwise speci? Although not mandatory, this practice enables all notches to be placed far enough from the ends to insure good support of the material end nearest the search unit d213 during set-up, and the inner surface notches to be near ends to facilitate insertion of the fabrication and veri?
Axial scanning with circumferential indexing may be used to provide equivalent coverage. The immersion method is almost always required for examining tubes for these uses. The relative responses from both the inner and outer surface notches should be as nearly equal as possible and practical. This inner surface notch signal must be well asrm the direct-in signal from the outer surface notch.
For many materials a 45 degree refraction angle may be achieved with a beam incidence asmt of about 18 to 19 degrees.
sstm The actual length of the worst case interception may be represented by: The methods used for cleaning and preparing the surfaces for ultrasonic examination shall not be detrimental to the base metal or the surface?