Historical
TIP 0402-18
Ultrasonic testing (ut) for tube thickness measurement in black liquor recovery boilers: part i - guidelines for accurate tube thickness testing; part 2 - default layouts for tube thickness surveys in various boiler zones
Following a review of general considerations related to UT thickness testing of boiler tubes, Part I of this TIP provides guidelines and procedures for acquiring accurate ultrasonic thickness readings on boiler 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 recovery boiler. It also stresses that a customized survey is essential for each boiler.
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Technical Association of the Pulp and Paper Industry [tappi]