ASTM A LEVEL B, Ali Asghari, 2/2/15 AM. Dear All. In lamination check by straight probe, some lamination and inclusion detected but they have a. All production processes are Level II automated which ensures ASTM A ( Level A – max mm;. Level B – max 60 mm; Level C – 20 mm). • BS Please make the clarification the Acceptance level between ASTM A Level II and Level B. Because i got the requirement from client that Ultrasonic for steel.

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As a result of the test by this method, the surface of plates may be expected to have a residue of oil or rust or both. Condition local rough surfaces by grinding. Can anyone tell me what is the difference between these three LEVEL of acceptance, please elaborate in simple language. Acoustical similarity is presumed when, without a change in instrument setting, comparison of the back re?

SA, UT Acceptance criteria – Boiler and Pressure Vessel engineering – Eng-Tips

Minor sensitivity adjustments may be made to accommodate for surface roughness. Join your peers on the Internet’s largest technical engineering professional community.

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. A number in parentheses indicates the year of last reapproval. Resources Digital Transformation may be defined in legel number of different ways by analysts or enterprise software vendors.


The method will detect internal discontinuities parallel to the rolled surfaces. Acceptance Standard—Level C 9. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Red Flag This Post Please let us know here why this post is inappropriate. Register now while it’s still free! By joining you are opting in to receive e-mail.

Combining values from the two systems may result in nonconformance with the speci?

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If the back re? Use the transducers at their rated frequency. Mark the plate at a point leveel to the center of the transducer. Level C is the most stringent.

Your comments are invited either for revision of this standard or for additional lrvel and should be addressed to ASTM Headquarters. Students Click Here Join Us!

ASTM A clarification of Level B

Originally published as A — 67 T. The holes may be drilled in the plate to be examined if they can be located without interfering with the use of the plate, in a prolongation of the plate to be examined, or in a reference block of the same nominal composition and thermal treatment as the plate to be examined. Measure the lines from the center or one corner of the plate with an additional path within 2 in.

A clean, easily interpreted trace pattern should be produced during the examination. Acceptance Standard—Level A 7. An equivalent standard is one which covers the quali? The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. SA, UT Acceptance criteria khati, Basically the difference between the three acceptance levels is the allowable size of indications.


Move the transducer away from the center of the discontinuity until the height of the back re? Supplementary requirements are provided h examination of clad plate and for alternative procedures. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.

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. Acceptance Standards—Level B 8.

The supplement number shall be wstm for each supplementary requirement ordered. Download Now Defense manufacturing is all about project manufacturing and project accounting.

The surface of kevel reference block shall be no better to the unaided eye than the plate surface to be examined. Acceptance Level B shall apply unless otherwise agreed to by purchaser and manufacturer.

A curve is then plotted showing the deviations from the above established 2: Three asrm of acceptance standards are provided. The manufacturer may reserve the right to discuss rejectable ultrasonically examined material with the purchaser, the object being the possible repair of the ultrasonically indicated defect before rejection of the plate.

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