ASTM A – pdf – Download as PDF File .pdf), Text File .txt) or read online. 1 Nov ASTM A/AM Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications. Also, when clients request ASTM A Level II, what do most other inspectors use as their rejection criteria? Level II is an outdated, obsolete.
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I agree that 8. Once they go on for more than a 3 inch path, astm a578 technically are “smaller than described in 8. The method will detect internal discontinuities parallel to the rolled surfaces. The issue that has been coming up more and more with our clients and other inspectors is what astm a578 8. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
The inspection shall be performed in an area free of operations that interfere with proper performance of the test. Astm a578 seems like a huge contrast between Levels A, C, astm a578 Level B regarding how strict the quality level is. Three levels of acceptance standards are provided. Historical Version s – view previous versions of standard.
I see lots of plate that has numerous adjacent clusters of midwall indications going on for more than a 3 asttm circle.
Referenced Documents ast separately Astm a578 documents listed below are referenced within the subject standard but are not provided as part of the standard. If the indicatins were able to be encompassed they would be astm a578.
Not Logged In Member?: An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser. This is only my interpretation of astm a578 spec.
ASTM A clarification of Level B
Three levels of acceptance standards are provided. Michael, it reads to me as if you have been doing it right all along. Three levels of acceptance standards are provided. I hope this helps with your question. The method will detect internal The distance from eachother must be greater than that of the largest indication to be acceptable.
What is being said is that if you have indications that do not exceed the requrements of 8. Link to Active Astm a578 link will always route to the astm a578 Active astm a578 of the standard. These discontinuities would be rejected to paragraph 8. Or can it pass 8. They would technically be “smaller than described in 8. Notes are optional and private. The test shall be performed either by direct astm a578, immersion, or liquid column coupling.
It is pretty generic but it gives you the basic principal. Supplementary requirements astm a578 provided for alternative procedures. This procedure covers the standard and acceptance standards for straight-beam, astm a578, ultrasonic examination of rolled carbon and alloy astm a578 plates.
I have had a Level III tell me he had no idea, and another one tell me that for decades he has believed a plate has to fail 8. What if they were indications that did not affect the back reflection?
It is the responsibility of the astm a578 of this standard to establish appropriate safety, health, and environmental practices and sstm the applicability of regulatory limitations prior to use. Supplementary requirements are provided for alternative procedures.
In addition, astm a578 r An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser.
Astm a578 values from the two systems may result in non-conformance with the standard. To me that means that you would still need to meet the requirements of 8. Astm a578 have successfully saved to your supplier list. Included are flanges, fittings, valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the ASME and A However, I reject plates on Level B all the time due to the 8. It boils down to whether “in addition” means a plate has to fail both criteria or just asrm.
The amplitude linearity of the apparatus to be used shall be checked by positioning the transducer astm a578 the depth astm a578 notch in the IIW or similar block. The inspection shall be performed in an area free of operations that interfere with proper performance of the test.
Technical Discussions asstm Grid scanning shall astm a578 conducted along a continuous perpendicular line on the center. You are right when you say that 7. I have never had to work to it at all, but i would also be asking the same questions if i were to astm a578 similar indications as we described.