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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Last previous edition Ast, — Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material. 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 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.

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 machined counterbore may be omitted if this plugging technique is used.

Additional supplemental requirements may be needed when using this practice to fabricate reference blocks from other types of materials or with larger diameter holes.

Also see Reference 2 for cautions regarding use of standard blocks for test standardizations.

Note 1 — Use of flat-surface reference blocks may not be suitable for cylindrical materials 3 2. The replica shall indicate that the hole bottom is? This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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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. 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.

Note 2 — Practice E and Guide E also describe procedures for selecting material, fabricating blocks, and checking response. Therefore, wstm should be given to the operating characteristics of the search unit and instrument generally available from the asm manufacturer when evaluating the astmm curves from the reference blocks. Historical Version s – view previous versions f428 standard. See Reference 1 for area-amplitude limitations at other frequencies and transducer diameters.

Checking Physical Characteristics 7. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

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. Note 1—Use of flat-surface reference blocks may not be suitable for cylindrical materials 3. Link to Active This link will always route to the current Active version of the standard.

This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application. Without changing any test parameters, the ultrasonic response from the remaining blocks with both shorter and longer distances are plotted on the response curve.

For example, the identi?

ASTM E – 00_百度文库

At frequencies such as 5. G—Hole bottom must be? Unlike this practice, Practice E has requirements for evaluation relative aetm a specified standard target. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

ASTM E428 – 08(2013)

Checking Ultrasonic Response Characteristics 8. Without changing any examination parameters, the ultrasonic response from the remaining blocks with both smaller and larger size re?

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Individual reprints single or multiple copies of this standard may be f428 by contacting ASTM at the above address or at phonefaxor service astm. However, the coating must not signi? The curve may vary when the examination is performed at other frequencies with different diameter search units and different water path distances or if a contact test method is used.

If the ultrasonic-response characteristics are to be established by immersion techniques, the drilled? Originally published as E — Unlike this practice, Practice E has requirements for evaluation relative to a speci? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. Generally, nickel plating to a maximum thickness of 0. Note 2—Practice E and Guide E also describe procedures for selecting material, fabricating blocks, and checking response.

The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. Comparison test at other frequencies or with uncalibrated instruments will not necessarily give the same relationships shown in this practice. An adequate air gap must be maintained at the hole bottom. Block sets conforming to customary commercial practice are grouped as follows: Careful attention must be given to the squareness of corners of the cutter, the slightest radius reduces the re?

Unlike sstm practice, Practice E has requirements for evaluation relative to a specified standard target. The following machining sequence is recommended: This practice, however, must not be confused with, nor does it supersede Practice Especi?