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API 570 Data sheets > Time Intervals > Flashcards

Time Intervals Flashcards

1
Q

NDE - minimum time an examiner should be in a darkened area prior to using a black light for MT and PT exams 

A

5 minutes

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2
Q

Testing – minimum duration for a pressure test per B31.3

A

10 minutes

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3
Q

NDE - final interpretation of a PT exam after application of developer (time range)

A

 10–60 minutes

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4
Q

Testing – minimum duration for a pressure test for API 577

A

30 minutes (conflict with B3 .3)

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5
Q

Testing – minimum duration of a Hydro to evaluate integrity of buried pipe

A

8 hours

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6
Q

NDE – Max calibrating interval – for all MT magnetic yokes

A

Daily (prior to use)

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7
Q

NDE - Max calibrating interval – RT densitometer 

A

3 months

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8
Q

Maximum time for obtaining thickness readings when corrosion rate on new pipe is not known (no other data available)

A

3 Months

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9
Q

Welding - Max time a welder or welding operator maintains qualifications for a process without using that process

A

6 Months

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10
Q

Interval – suggested interval for above – grade visual surveillance of buried pipe

A

6 Months

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11
Q

NDE-Maximum interval for a visual examiner’s eyeI exam

A

1 year

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12
Q

NDE - Max interval to calibrate pressure gauge used in testing 

A

1 Year

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13
Q

AI – length of time before an API 570 AI must recertify 

A

3 years

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14
Q

Inspection – Max thickness inspection interval for an injection point

A

Lesser of 3 years or 1/2 life

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15
Q

Inspection - Max external inspection interval for class 1 and 2 piping

A

5 years

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16
Q

Inspection – maximum interval for relief devices in fouling or corrosive service

A

5 years

17
Q

Inspection – suggested interval for close – interval potential survey of buried pipe with poor CP

A

3-5 years

18
Q

Inspection – Max thickness inspection interval for class 1 piping

A

Lesser of 5 years or 1/2 life

19
Q

AI – the length of time before an API 570 AI must recertify by on-line exam

A

6 years

20
Q

Inspection – maximum interval for relief devices in non-fouling or noncorrosive service

A

10 years

21
Q

Inspection – minimum years of experience for owners inspector during new fabrication

A

10 years

22
Q

Inspection – maximum external inspection interval for class 3 piping

A

10 years

23
Q

RBI– maximum interval for the RBI reassessment

A

10 years

24
Q

Inspection – Maximum thickness inspection interval for class 2 and 3 piping

A

Lesser of 10 years or 1/2 life

25
Q

Repairs – when should temporary welded pipe repairs be replaced

A

Next opportunity

26
Q

Repairs – when shall non–welded repairs and temporary leak sealing devices be removed and pipe repaired

A

Next turnaround

27
Q

NDE - Max calibrating interval – check the light intensity of a black light used in a MT or PT exam

A

Before and after use

API 570 Data sheets (13 decks)

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