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UNI/TS 11317

2009 Edition, February 2009

Complete Document

NON-DESTRUCTIVE TESTING INSPECTION OF ABOVEGROUND PIPELINES AND PLANT PIPING USING LONG RANGE GUIDED WAVES WITH AXIAL PROPAGATION



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Description / Abstract:

The standard is applied for inspection of carbon steel and low alloy steel tubes, aboveground, using long range guided waves with axial propagation at the aim to find internal/external corrosion and erosion. The standard shall be used for pipes with external diameter between DN 25 and DN 1200, wall thickness between 2 mm and 55 mm and wall temperature between 0 °C and 70 °C, in the following situations (where guided waves test has been applied with consolidated experience): aboveground painted pipelines; aboveground insulated pipelines; road crossings with casing pipe and without bitumen wrapping; painted piping; insulated piping. Other long range guided waves applications, not included in the present standard, can be applied only if a preliminary parts agreement and a validated procedure are present.