What are the differences between the certificates for pressure vessels classified in one category and those classified in another?
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What are the differences between the certificates for pressure vessels classified in one category and those classified in another?
There’s no difference in the certificates, right? At most, it’s mentioned in the regulatory provisions; there are none for those not classified, while those that are classified are subject to tolerance specifications.
To put it simply, the most important thing is whether supervision and inspection are required; there’s no need to be overly strict about the tolerance specifications
There’s no difference; those in the higher category need an inspection report from the quality control agency.
Yes, for the higher-grade ones, there is an additional manufacturing inspection report
Regarding the certification issue, those that fall into the relevant category must undergo inspection by supervisors from the Boiler and Pressure Vessel Inspection Institute, who will issue an inspection report; those that do not fall into such a category are not required to go through such supervision inspections.
Containers of this category are inspected by the Quality Supervision Bureau, and a series of documents are required. Materials not classified are provided upon user request