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TAPPI TIP0402-18
M00001085
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TAPPI TIP0402-18 Ultrasonic testing (UT) for tube thickness in black liquor recovery boilers: Part I - Guidelines for accurate tube thickness testing; Part II - Default layouts for tube thickness surveys in various boiler zones
standard by Technical Association of the Pulp and Paper Industry, 01/01/2010
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This TIP is a review of general considerations related to UT thickness testing of black liquor recovery boilertubes:Part I of this TIP provides guidelines and procedures for acquiring accurate ultrasonic thickness readings onboiler tubes, where the tube material and condition are conducive to such non-destructive thickness testing.
Part II describes how tube thickness surveys are commonly laid out for different zones of a typical recoveryboiler. It also stresses that a customized survey is essential for each boiler.