Issues related to pipeline radiographic inspection
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In the pipeline characteristic table provided by the design institute, the required value is the inspection ratio for each individual pipeline diagram. Is it possible to group those with the same pipe diameter and the same inspection ratio together, and then select a certain number of welds from that group for inspection? Also, please let me know whether the branch pipe welds are within the inspection range! Thank you!
When it comes to tapping, different standards have varying descriptions. . For example, in 20801, those with a diameter of greater than or equal to DN500 have welds inspected per loop. For those less than 500, sampling can be done based on the number of joints.
1. Statistically based on the pipeline system, 2. Only include relevant pipes, 3. Try to cover various pipe diameters