API 570 DATA SHEETS (MISCELLANEOUS OTHER)

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egf4201
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286387
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API 570 DATA SHEETS (MISCELLANEOUS OTHER)
Updated:
2014-10-20 13:11:25
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API 570 DATA SHEETS MISCELLANEOUS OTHER
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API 570 DATA SHEETS (MISCELLANEOUS OTHER)
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  1. NDE- weight used to check magnetic strength of an AC yoke
    10 lb
  2. NDE- weight used to check magnetic strength of a DC yoke
    40 lb
  3. NDE- weight used to check magnetic strength of a permanent magnet yoke
    40 lb
  4. NDE- min angle of eye-to-part to count as a visual exam
    30 degrees
  5. NDE- two primary gamma-ray RT sources
    Ir 192, Co 60
  6. NDE- lead letter used during RT to check for backscatter radiation
    B
  7. NDE- lead letter used during RT to indicate a film side IQI
    F
  8. NDE- hole size that must be visible in RT when using a hole-type IQI
    2T
  9. NDE- minimum light instensity when performing non-fluorescent MT or PT or VT exams
    100 ft-candles
  10. NDE- minimum black light intensity when performing MT or PT fluorescent exams
    1000 mW/cm2
  11. NDE- maximum UT scanning speed
    6"/sec
  12. weld qualification- maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon
    2T
  13. weld qualification- the "all-position" test coupon
    6G
  14. weld qualification- rejectable in RT when qualifying a welder
    crack, LoF, IP
  15. weld qualification- which welding process can a welder NOT be qualified by RT/UT
    GMAW-SC
  16. welding- variables needed on WPS
    essential & non-essential
  17. welding- variables needed on PQR
    essential
  18. welding- minimum taper required for welds with mismatch
    30 degrees
  19. design- two most common CS pipe materials
    A53 & A106
  20. repair- maximum allowed SMYS for pipe if fillet-welded patch is installed
    40,000 psi
  21. test- pH of water needed to reduce likelihood of MIC (bugs)
    > 10 pH
  22. test- maximum stress allowed during a pressure test
    90 % of SMYS
  23. corrosion- typical external corrosion rate for dry rural environments
    < 1 mpy
  24. corrosion- typical external corrosion rate for inland locations with moderate rain & humidity
    1-3 mpy
  25. corrosion- possible external corrosion rate for industrial environments with acid or sulfur compounds
    5-10 mpy
  26. corrosion- possible external corrosion rate for marine environments
    20 mpy

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