ASTM E428 PDF

This practice covers a procedure for fabrication and control of metal alloy reference blocks used in ultrasonic examination that have a flat-surface sound entry, are cylindrical in shape, and contain flat-bottom holes FBH which may be used for checking the performance of ultrasonic examination instrumentation and search units and for standardization and control of ultrasonic examination of metal alloy products. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material. This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

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This practice covers a procedure for fabrication and control of metal alloy reference blocks used in ultrasonic examination that have a flat-surface sound entry, are cylindrical in shape, and contain flat-bottom holes FBH which may be used for checking the performance of ultrasonic examination instrumentation and search units and for standardization and control of ultrasonic examination of metal alloy products.

The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods. Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

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

The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Stay on Page Continue to Compass. Scope 1. Note 1 — Use of flat-surface reference blocks may not be suitable for cylindrical materials 3 2.

Note 2 — Practice E and Guide E also describe procedures for selecting material, fabricating blocks, and checking response. Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target.

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ASTM E — ASTM E A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This speci?

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Ultrasonic Plotting ASTM E428, E127 FBH Block Sets

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Translated Standard: Russian. Other Historical Standards. Work Item s - proposed revisions of this standard. More E The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods.

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