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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Active view current version of standard. 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—This practice may be used to produce blocks with?

The following machining sequence is recommended: Originally published as E — 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.

Also see Reference 2 for cautions regarding use of standard blocks for test standardizations. Checking Ultrasonic Response Characteristics 8. Comparison test at other frequencies or with uncalibrated instruments will not necessarily give the same relationships shown in this practice. Without changing any test parameters, the ultrasonic response from the remaining blocks with both shorter and longer distances are plotted on the response curve. Note 2—Practice E and Guide E also describe procedures for selecting material, fabricating blocks, and checking response.

This practice, however, must not be confused with, nor does it supersede Practice Especifically governing the fabrication and evaluation of T6 aluminum alloy ultrasonic standard reference blocks.

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The grain size, heat treat condition, physical and chemical composition, surface? Block sets conforming to customary commercial practice are grouped as follows: 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 direct-contact method or immersion pulse-echo ultrasonic methods.

For example, the identi?

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 Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

Additional supplemental requirements may be needed when using this practice to fabricate reference blocks from other types of materials or with larger diameter holes. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

The acoustic noise level from the material is not to be confused with inherent electrical instrument noise often ast, when the system sensitivity is adjusted to its maximum level range. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. If the ultrasonic-response characteristics are to be established by immersion techniques, the drilled? Note 1 — Use of flat-surface reference blocks may not be suitable for cylindrical materials 3 2.

Due to possible edge build-up during the plating process, this tolerance ast, 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.

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ASTM E – 00_百度文库

Therefore, consideration s428 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. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

Historical Version s – view previous versions of standard. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

ASTM E428 – 08(2013)

Unlike this practice, Practice E has requirements for evaluation relative to a speci? At frequencies such as 5. Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Last previous edition E — Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as e28 of the standard.

Serial numbers are important when comparing sets of blocks asym their respective response curves and to other sets of blocks. Summary of Practice 4.

Under no circumstances may the FBH be altered to change the ultrasonicresponse characteristics of the reference block.