Questions about registering for the pressure vessel audit certificate?
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Everyone, the company holds design qualifications for A1, A2, and A3. If we want to apply for a pressure vessel inspection certificate, do we only need to apply for A1? Can obtaining an A1 certificate be used to verify A2 and A3? Is it still necessary to apply for categories A1, A2, and A3 simultaneously in order to have the A1, A2, and A3 containers approved? Is there a covering relationship for the current approval certificates?
There is no overlapping relationship among the audit certificates of categories A1, A2, and A3...
No relationship is covered; if you want A1, A2, and A3 to all be reviewed, you must register for categories A1, A2, and A3 simultaneously
A1 refers to high-pressure vessels, A2 refers to medium and low-pressure vessels, and A3 refers to spherical storage tanks. These three cannot replace each other; most people choose them. It’s just that the range of topics available for the defense has expanded, but nothing else has changed. Some only choose A2, which is related to the product range of the company.
Based on your company’s qualifications, it’s best to select all of them; they will come in handy in the future, and it’s ideal to pass everything at once.
Considering the company’s products, I only applied for level A2 at that time; I regret it now.
If you want to report, include A1, A2, and A3. If only A1 is applied for, the other two cannot be approved.
A Class III certificate naturally covers Classes I and II as well.
Generally, A1 and A2 are submitted together; whether A3 is needed depends on whether it is required for your company’s products. For A1, it is also necessary to indicate whether it is intended for use in single layers only