API RP 581 - 3rd Ed.2016 - Add.2-2020 - Risk-Based Inspection Methodology
PART 2ANNEX 2.C—LEVELS OF INSPECTION EFFECTIVENESS
CONTENTSOVERVIEW ........................................................................................................................................ 1INSPECTION EFFECTIVENESS ...................................................................................................... 12.C.2.1 The Value of Inspection .......................................................................................................... 12.C.2.2 Inspection Effectiveness Categories ..................................................................................... 22.C.2.3 Tables ....................................................................................................................................... 3PRESSURE-RELIEF VALVES .......................................................................................................... 32.C.3.1 Tables ....................................................................................................................................... 4HEAT EXCHANGER TUBE BUNDLES ............................................................................................ 52.C.4.1 Inspection Planning with Inspection History ....................................................................... 52.C.4.1.1 Effect of Inspection on Probability of Failure .............................................................. 52.C.4.1.2 Reduction in Uncertainty Due to Inspection Effectiveness ....................................... 52.C.4.1.3 Tables ................................................................................................................................... 6ATMOSPHERIC STORAGE TANK COMPONENTS ........................................................................ 72.C.5.1 Inspection Effectiveness for Atmospheric Storage Tanks ................................................. 72.C.5.2 Tables ....................................................................................................................................... 8NON-METALLIC LININGS ................................................................................................................ 112.C.6.1 Inspection Effectiveness for Non-metallic Linings .............................................................. 112.C.6.2 Tables ....................................................................................................................................... 11BURIED COMPONENTS................................................................................................................... 122.C.7.1 Inspection Effectiveness for Buried Components ............................................................... 122.C.7.2 Tables ....................................................................................................................................... 12INSPECTION EFFECTIVENESS FOR THINNING ........................................................................... 132.C.8.1 Use of the Inspection Effectiveness Tables ......................................................................... 132.C.8.2 Tables ....................................................................................................................................... 13INSPECTION EFFECTIVENESS TABLES FOR STRESS CORROSION CRACKING ................... 152.C.9.1 Use of the Inspection Effectiveness Tables ......................................................................... 152.C.9.2 Tables ....................................................................................................................................... 15Table 2.C.9.4—LoIE Example for ClSCC .......................................................................................... 18Table 2.C.9.6—LoIE Example for SSC .............................................................................................. 20Table 2.C.9.7—LoIE Example for HIC/SOHIC-H2S Cracking .......................................................... 21INSPECTION EFFECTIVENESS FOR EXTERNAL DAMAGE .................................................... 242.C.10.1 Use of the Inspection Effectiveness Tables ..................................................................... 242.C.10.2 Tables ................................................................................................................................... 24INSPECTION EFFECTIVENESS TABLES FOR HIGH TEMPERATURE HYDROGEN ATTACKDAMAGE 272.C.11.1 Use of the Inspection Effectiveness Tables ..................................................................... 27
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PART 2
ANNEX 2.C—LEVELS OF INSPECTION EFFECTIVENESS
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