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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When testing plates less than 3? Condition local rough surfaces by grinding.

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Maintain this instrument setting during evaluation of the discontinuity condition. Register now while it’s still free!

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

Use a suitable couplant such as water, soluble oil, or glycerin. 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. Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Download Now White Paper: SA, UT Acceptance criteria khati, Basically the difference between the three acceptance levels is the allowable size of indications. The manufacturer shall afford the inspector all reasonable facilities to astk him that the material is being furnished in accordance with this speci?

The supplement number lfvel be added for each supplementary requirement ordered. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

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Minor sensitivity adjustments may be made to accommodate for surface roughness. Click Here to join Eng-Tips and talk with other members! Red Flag This Post Please let us know here why this post is inappropriate.

A curve is then plotted showing the deviations from the above established 2: 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. The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Acceptance Level B shall apply unless otherwise agreed to by purchaser and manufacturer. The Eng-Tips staff will check this out and take appropriate action. 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.

Current edition approved Sept.

Acceptance Standard—Level C 9. Originally published as A — 67 T. Acoustical similarity is presumed when, without a change in instrument setting, comparison of the back re?

Combining elvel from the two systems may result in nonconformance with the speci? Supplementary requirements are provided for examination of clad plate and for alternative procedures. The surface of the reference block shall be no better to the unaided eye than the plate surface to be examined. 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 h own responsibility.

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Additionally, prior approval must be obtained if the weld repaired surface exceeds 1. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

It’s easy to join and it’s lveel. A clean, easily interpreted trace pattern should be produced during the examination. The material shall be held for metallurgical review by the purchaser and manufacturer. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. An equivalent standard is kevel which covers the quali? Level C is the most stringent. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

When this condition is observed it shall be investigated additionally by use of multiple back re?

ASTM A clarification of Level B

Are you an Engineering professional? At each increment the ratio of the two signals is determined. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Within the text, the SI units are shown in brackets. Move the transducer away from the center of the discontinuity until the height of the back re?

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Make and model of instrument, test frequency, surface condition, transducer type and frequencyand couplant.