Time Intervals

Question 1

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

Answer 1

5 minutes ASME V: T-676.4.b & T-777.2.b

Question 2

Testing - Minimum duration for a pressure test

Answer 2

10 minutes B31.3: 345.2.2.a

Question 3

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

Answer 3

10-60 minutes ASME V: T-676.1

Question 4

Testing - Minimum duration of hydro to evaluate integrity of buried pipe

Answer 4

8 hours 570: 9.3.7

Question 5

NDE - Max Calibrating Interval – MT Permanent Magnet Yoke

Answer 5

Daily ASME V: T-762.a

Question 6

NDE - Max Calibrating Interval - RT densitometer

Answer 6

90 days ASME V: T-262.1

Question 7

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

Answer 7

3 months 570: 7.1.2.c

Question 8

Welding – Max Time a Welder or Welding Operator maintains qualifications for a process without using that process

Answer 8

6 months ASME IX: QW-322.1.a

Question 9

Interval - Suggested interval for Above-grade Visual Surveillance of buried pipe

Answer 9

6 months 570: 9.3.1

Question 10

NDE - Max Calibrating Interval - Electromagnetic MT Yoke

Answer 10

1 year ASME V: T-762.a

Question 11

NDE - Maximum Interval for a visual examiner’s eye exam

Answer 11

1 year ASME V: T-923

Question 12

NDE - Max interval to calibrate pressure gauge used in testing

Answer 12

1 year ASME V: T-1061.a

Question 13

AI - Length of time before an API 570 AI must recertify

Answer 13

3 years 570: A.3.1

Question 14

Insp - Max Thickness Inspection interval for an Injection Point

Answer 14

Lesser 3 yr or ½ Life 570: Table 2

Question 15

Insp - Max External Inspection interval for Class 1 & 2 Piping

Answer 15

5 year 570: Table 2

Question 16

Insp - Maximum Interval for Relief devices in fouling or corrosive service

Answer 16

5 year 570: 6.7.3.2

Question 17

Insp - Suggested interval for Close-interval Potential Survey of buried pipe with poor CP

Answer 17

5 year 570: 9.3.2

Question 18

Insp - Suggested interval for evaluation of Soil Corrosivity for buried pipe with no CP

Answer 18

5 year 570: 9.3.4

Question 19

Insp - Max Thickness Inspection interval for Class 1 Piping

Answer 19

Lesser 5 yr or ½ Life 570: Table 2

Question 20

Insp - Maximum Interval for Relief devices in non-fouling or non-corrosive service

Answer 20

10 years 570: 6.7.3.2

Question 21

Insp - Minimum years of experience for Owner’s inspector during new fabrication

Answer 21

10 years B31.3: 340.4.b

Question 22

Insp - Maximum External Inspection interval for Class 3 Piping

Answer 22

10 years 570: Table 2

Question 23

Insp - Maximum Thickness Inspection interval for Class 2 & 3 Piping

Answer 23

Lesser 10 yr or ½ Life 570: Table 2

Question 24

RBI - Maximum Interval for the RBI Reassessment

Answer 24

Per Table 2 570: 5.2.4

Question 25

Repairs - When should temporary welded pipe repairs be replaced

Answer 25

Next opportunity 570: 8.1.4.1

Question 26

Repairs - When shall non-welded repairs & temporary leak sealing devices and be removed and pipe repaired

Answer 26

Next turnaround 570: 8.1.5

Question 27

NDE - Max Calibrating Interval - Check the light intensity of a black light used in a MT or PT exam

Answer 27

Before & after use ASME V: T-676.4.e & T-777.2.e