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ASTM E428 PDF

Designation: E – 00 An American National Standard. Standard This practice covers a procedure for fabrication and ASTM Standards: control of. ASTM Distance-Amplitude #3, #5, #8 FBH Blocks (set of. 19). 9. EDM Notches . amplitude. Specifications: ASTM E, ASTM. E Calibration. Application. ASTM E – 00 – Standard Practice for Fabrication and Control of Steel Reference Blocks Used in.

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Careful attention must be given to the squareness of corners of the cutter, the slightest radius reduces the re?

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. This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application. In cases of materials that are acoustically transparent to the extent that this requirement cannot be satis? 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 4e28 use.

For record purposes, the replica may be projected on a comparator screen and photographed as shown in Fig. If the ultrasonic-response characteristics are to be established by immersion techniques, the drilled?

The machined counterbore may be omitted if this plugging technique is used. Last previous edition E — Active view current version of standard. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Link to Active This link will always route to asstm current Active version of the standard.

ASTM E – 00_百度文库

A e4288 in parentheses indicates the year of last reapproval. Checking Ultrasonic Response Characteristics 8. Generally, nickel plating to a maximum thickness of 0.

This practice shall in no way preclude the speci? Summary of Practice 4. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. This is particularly desirable in the cases of sets containing? Note 1—Use of flat-surface reference blocks may not be suitable for cylindrical materials 3. 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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However, the coating must not signi? Link to Active This link will always route to the current Active version of the standard. NOTE 2—This practice may be used to produce blocks with?

See Reference 1 for area-amplitude limitations at other frequencies and transducer diameters. Note 1 — Use of flat-surface reference blocks may not be suitable for cylindrical materials 3 2. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. The acoustic noise level from the material is not to be confused with inherent electrical instrument noise often observed when the system sensitivity is adjusted to its maximum level range.

The grain size, heat treat condition, physical and chemical composition, surface? Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material. Where several sets and types of blocks are being used, a serial number identi? If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

The examination instruments, frequency, and search unit used in the evaluation of the raw material intended for the fabrication of the reference blocks shall be comparable to that used in the examination of the production material.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at e4428 above address or at phonefaxor service astm. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

It is the responsibility of the user of this standard to establish appro- 1 This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E The following machining sequence is recommended: This practice, however, must not be confused with, ee428 does it supersede Practice Especifically governing the fabrication and evaluation of T6 aluminum alloy ultrasonic standard reference blocks.

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G—Hole bottom must be? On samples that are to have FBHs smaller than 3? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. D—Hole astn tolerance Block sets conforming to customary commercial practice are grouped as follows: The physical ast, of the hole may be established by evaluating plastic replicas.

ASTM E428 – 08(2013)

The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. Due to possible edge build-up during the plating process, sstm tolerance applies only to the area exclusive of that within 1? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Without changing any test parameters, the ultrasonic response from the remaining blocks with both shorter and longer distances are plotted on the response curve. This practice, however, must not be confused with, nor does it supersede Practice Especi? Without changing any examination parameters, the ultrasonic response from the remaining blocks with both smaller and larger size re?

Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material. The curve may vary when the test is performed at other frequencies with different diameter search units and different water-path distances or if a contact test method is used. An adequate air gap must be maintained at the hole bottom.

At frequencies such as 5. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.