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

Also see Reference 2 for cautions regarding use of standard blocks for test standardizations. Checking Physical Characteristics 7. The following machining sequence is recommended: Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target.

ASTM E428 – 08(2013)

Additional procedures and controls may be required when fabricating reference blocks from other ee428 carbon or alloy steel material. Due to possible edge build-up during the plating process, this tolerance applies only to the area exclusive of that within 1? 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.

Without changing any test parameters, the ultrasonic response from the remaining blocks with both shorter and longer distances are plotted e48 the response curve. Without changing any examination parameters, the ultrasonic response from the remaining blocks with both smaller and larger size re? This is particularly desirable in the cases of sets containing?

D—Hole diameter tolerance Generally, nickel plating to a maximum thickness of 0. For record purposes, the replica may be projected on a comparator screen and photographed as shown in Fig. Therefore, consideration should be given to the operating characteristics of the search unit and instrument generally available from the equipment manufacturer when evaluating the response curves from the reference blocks. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods.

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If the ultrasonic-response characteristics are to be established by immersion techniques, the drilled? Summary of Practice 4. Under no circumstances may the FBH be altered to change the ultrasonicresponse characteristics of the reference block.

It is the responsibility of the user of this standard to establish appropriate xstm and health practices and determine the applicability of regulatory limitations prior to use. The physical characteristics of the hole may be established by evaluating plastic replicas.

See Reference 1 for area-amplitude limitations at other frequencies and transducer diameters. A number in parentheses indicates the year of last reapproval.

Historical Version s – view previous versions of standard. Additional supplemental requirements may be needed when using this practice to fabricate reference blocks from other types of materials or with larger diameter holes.

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ASTM E – 00_百度文库

However, the coating must not signi? Active view current version of standard. Current edition approved July 10, This practice shall in no way preclude the speci? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

The reference blocks described are suitable for use with either the aatm method or immersion pulse-echo ultrasonic methods. The grain size, heat treat condition, physical and chemical composition, surface? Astmm 1 — Use of flat-surface reference blocks may not be suitable for cylindrical materials 3 2. Comparison test at other frequencies or with uncalibrated instruments will not necessarily give the same relationships shown in this practice.

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Active view current version of standard Translated Standard: Last previous edition E — For example, the identi? Link to Active This link will always route to the current Active version of the standard.

wstm This practice, however, must not be confused with, nor does it supersede Practice Especi? On samples that are to have FBHs smaller than 3? Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Unlike this practice, Practice E has requirements for evaluation relative to a e4288 standard target. This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

It must be recognized however that there are limitations on the size hole that may be replicated and evaluated. Serial numbers are important when comparing sets of blocks to their respective response curves and to other sets of blocks. Block sets conforming to customary commercial practice are grouped as follows: Where several sets and types of blocks are being used, a serial number identi? This practice shall in no e28 preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

The machined counterbore may be omitted if this plugging technique is used. Users of this standard are expressly advised that asrm of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Note 1—Use of flat-surface reference blocks may not be suitable for cylindrical materials 3.