Regulations for Safety Inspection of Existing Hazardous Machines and Equipment Article 12

When the Owner are lacking of the original documents as listed in the preceding Article, the Inspector shall proceed with the inspection in accordance with the following requirements:1. With respect to those cases where the relevant documents evidenced with the original manufacture's signature are available, the radioactive examination, welding efficiency, material property and strength may be qualified by review of the said documents. 2. With respect to those cases where the material specification utilized are unknown, the minimum material strength may be considered.3. In review of the material strength, the original design standards or the related standards existing at the manufacturing stage may be adopted.4. The welding and construction inspections may be deemed as acceptable, if the prior acceptance stamps of the same inspections can be identified. 5. An overall construction drawing to be prepared by the Owner, indicating the inner diameter of vessel, length, end plate, type of tube sheet, thickness, size and location of the holes, arrangement of the heat transfer tubes and etc. may be accepted. 6. With respect to those cases where the Owner's submittal does contain the mechanical test results for the welded components, or in case the required non-destructive examination results, or the strength calculation sheets do not appear in a completed form, a strength calculation report for the major components including the fire tubes, vessel body, end plate, tube sheet and etc., which is prepared by the Owner and has been checked and acknowledged by a registered professional mechanical engineer, may be considered to be acceptable.