Issues with the version of the standards used in product production?
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Currently, many products may require standard revisions due to their long production cycles. Which date is used for the actual execution? If the version number is specified in the design, it will naturally be based on that specified version number; if it is not specified, then the latest version will be used. Does this \"latest\" refer to the date of contract signing or to the date when the product is manufactured or tested? Are there any clear regulations in the industry?
We all confirm things in accordance with the contract. If it’s based on the date of manufacturing or inspection, it might not match the design documents, and that would lead to chaos.
It is generally determined based on the date the contract was signed.
It is based on the contract signing date, and the specific requirements of the contract also need to be considered.
We all calculate it based on the design signing date. However, the official regulations consider the date of contract signing.
Sure enough, new problems have arisen: after the transition period specified in NB/T47013.1-13-2015, all previous standards must be replaced by the new ones, regardless of when the design was carried out or when the contract was signed. The boiler inspection agency takes a one-size-fits-all approach.
There is a transition period when old and new standards are replaced. . . .
Yes, but the transition period is usually around half a year. However, from design to manufacturing to delivery, estimates of less than half a year are very rare. It basically cannot meet most of the requirements.
For some large equipment, half a year is probably not enough. There is no official definition for this transition period either. Some say the transition period is one year.
The flaw detection standards are okay. There was a major update to material standards some time ago – how did you cope with that? Surely we can’t discard the materials that have just been purchased just because the standards change?