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楼主 |
发表于 2020-5-22 11:24:09
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The ultrasonic inspection of the wall thickness according to EN 10246-13 shall be performed
for all pipes D > 142 mm, if these are used within the creeping range. Furthermore, the
ultrasonic inspection of the wall thickness shall be carried out within a measuring grid 4 times
at the circumference (offset by 90°) at least every 1,000 mm over the length of the pipe for all
pipes. The measured values shall be documented retraceably with reference to the zero line. |
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