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217 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Code to follow when performing an internal inspection on pipe |
API 510 |
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Positive material identification (PMI) |
API 578 |
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Fitness for service (FFS) |
API 579 |
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Risked based inspection (RBI) |
API 580 |
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Corrosion under insulation (CUI) |
API 583 |
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Valve inspection and testing |
API 598 |
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Cathodic protection |
API 651 |
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Welding on in service equipment |
API 2201 |
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NDE procedure guidelines |
ASME sect V |
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Design code for fabrication of piping relief devices |
ASME section 8 |
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Welder and weld procedure qualification |
ASME section 9 |
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NDE personal qualification |
ASME SNT-TC-1A or CP-189 |
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API 570 scope |
AIRR (Alteration. Inspection, repair,rerate) |
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API 570 AI employer |
JUIC (Jurisdiction, user, insurance company, contractor) |
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API 570 repair organization |
JOC (Authorized by Jurisdiction, owner, contractor) |
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Primary responsibility of API 570 AI |
A TIE (Testing, inspection,Examination ) |
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Determine corrosion rate for new service or change in service |
SOPI (Same or similar service, owners experience, published data, inspect in last 3 months) |
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Define- alteration |
Physical change |
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NDE- number of CMLs to obtain thickness readings during inspection |
Representative |
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NDE- cml that must be measured during a thickness inspection |
CML w/ earliest renewal date |
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PRD’s how relief devices intervals are determined |
Performance |
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Corrosion-type of soil that is most corrosive |
Low resistivity |
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Corrosion- factors the affect the creep rate |
Time. Temp. Stress |
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Mill tolerance for rolled and welded pipe |
-0.010” |
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NDE- maximum length of crack or incomplete fusion allowed on a new weld |
0” |
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Typical flange face finish |
125-250 micro inch |
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When mating flanges the maximum amount of unparallel allowed (per diameter of flange in feet) |
1/16” per foot |
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Max offset for bolt holes for mating flanges |
1/8” |
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Define- repair |
Restore-suitable |
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Corrosion-cause for fatigue crack |
Cyclic stress |
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Define- imperfection that exceeds the acceptance criteria |
Defect |
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Corrosion- factors the affect the creep rate |
Time. Temp. Stress |
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Define- RPI’s two primary factors |
Probably and consequence |
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RBI- two primary factors of consequence of failure |
Process fluid and volume |
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Repairs- # of new flange assemblies to be inspected during repairs and alterations |
Representative |
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Inspection- basis of API 570s piping classification |
Consequence of failure |
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Corrosion- method by which process leaks can lead to brittle failure |
Auto refigeration |
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Maximum allowed size of open discontinuity in a bend test |
1/8” |
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NDE-distance of eye to part to count as a visual exam |
6-24” |
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Corrosion- soil to air area- distance in soil from interface |
12” |
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NDE- minimum upstream limit of intensive examination of inspection point circuit |
12” |
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Minimum overlap for PWHT when using multiple heats |
12” |
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Minimum distance beyond the area to be examined to clean a part when performing a MT or PT examination |
1” |
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Minimum radius of insert patch |
1” |
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Suggested diameter of cml exam point |
2” |
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Preheat zone- minimum width of band |
3T |
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NDE- minimum length of spot RT |
6” |
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Minimum weld length when qualifying a welder with RT/UT using a coupon or 1st production weld |
6” |
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Minimum weld length when qualifying a welding operator with RT/UT of a test coupon |
6” |
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Corrosion-Soil to air area- distance in air from surface |
6” |
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Corrosion- distance to dig when inspecting for soil to air corrosion |
6-12” |
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Minimum weld length when qualifying a welding operator with RT/UT of first production weld |
3’ |
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Subject to chloride stress corrosion cracking |
300-SS |
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Subject to polytheonic acid stress corrosion cracking |
Sensitized 300 SS |
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P#s allowed to use pre heat in lieu of PWHT |
P1&P3 |
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P#s allowed to use controlled deposition in lieu of PWHT |
P1,P3,P4 |
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CUI affects carbon steel and low alloy (temp range) |
10-350F |
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UT calibration- UT block must be within what temp of the part to be examined |
25F |
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Standard temp range for a PT exam |
40-125F |
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Minimum flash point of hydrocarbons used for leak testing |
120F |
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CUI affects austentic SS (temp range) |
140-350F |
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Temperature where chloride stress corrosion cracking becomes a concern |
> 140F |
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Minimum length of buried pipe to expose when excavating for inspection |
6-8’ |
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Temp where Special procedure needed for UT thickness readings |
>150F |
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Most aggressive CUI range |
212-350F |
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Minimum pre heat temp when preheat is substituted for PWHT |
300F |
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Minimum preheat temperature when a local PWHT is substituted for a full encirclement PWHT |
300F |
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Starting temperature for sulfidation on carbon steel per api 574 |
500F |
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Starting temp for sulfidation on iron based alloys per api 570 and api 571 |
500F |
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Operating temp when a corrosion specialist must input on an inspection plan |
> 750 F |
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Graphitization occurs in carbon steel materials |
Greater than or equal to 800F |
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Temp-Creep occurs in 1-1/4% chrome materials |
>900 |
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Maximum temperature for UT readings per sect V |
1000F |
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Maximum size of fillet weld patch on pipe |
1/2 diameter |
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Maximum temperature for UT readings per API 574 using special decay lines and water cooled transducer |
1100F |
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CS HAZ- base metal that did not melt but exceeded this temp during welding |
1350F |
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Minimum base metal temp during pressure test when wall thickness is <2” thick |
MDMT +10F |
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Minimum base metal temp during pressure test when wall thickness is >2” thick |
MDMT + 30F |
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Max temperature for magnetic particles |
Manufacture recommended |
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Maximum upstream limit of injection point circuit |
Greater of: 12” or 3 Dia |
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Minimum downstream limit of intensive examination of injection point circuit |
10 diameters |
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Minimum downstream limit of injection point circuit |
Lesser of: 1st direction change +25’ or 2nd direction change |
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Linear indications |
Length is greater than or equal to 3 times the width |
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Common material with an endurance limit |
CS |
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Subject to temper embrittlement |
Low chromes |
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Common material w/o an endurance limit |
SS |
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Flanges- minimum thread engagement acceptance criteria per API 570 |
-1 thd |
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Flanges- minimum thread engagement acceptance criteria per B31.3 |
-0 thd |
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Ratio of endurance limit stress to ultimate tensile stress for carbon steel |
0.4-0.5 |
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Minimum range of pressure gauge used during pressure test (multiplied by test pressure) |
1.5 |
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Impact test- number of test bars required in each set |
3 |
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When using a shin under a hole type IQI, the number of sides of the IQI that must be seen in the RT image |
3 |
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Number of additional welds or joints to examine when a weld defect is found during a random examination |
2 |
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Preferred range of pressure gauge used during pressure test (multiplied by test pressure) |
2 |
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Maximum range of pressure gauge used during pressure test (multiplied by test pressure) |
4 |
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Number of additional welds of joints to examine when a weld defect is found during a random examination |
2 |
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PWHT- # of thermocouples required when performing a local PWHT instead of a 360 degree band |
2 |
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Weld qualification-Number of tension test to qualify a WPS |
2 |
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Weld qualification- number of bend test to qualify a welder or welding operator in welding positions 1G-4G |
2 |
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Minimum number of exposures to RT 360 of a weld using a double wall technique double wall view (elliptical) |
2 |
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RT film density range allowed of a weld and IQI when using a gamma ray source |
2.0-4.0 |
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Minimum number of exposures to RT 360 of a weld using a double wall technique. Single wall view |
3 |
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Number of bend test to qualify a welder or welding operator in welding positions 5G&6G |
4 |
<50ppm
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Minimum time an examiner should be in a darkened area prior to using a black light for MT&PT exams |
5min |
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Minimum duration for a pressure test per B31.3 |
10 min |
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Final interpretation of a PT exam after application of developer (time range) |
10-60 min |
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Minimum duration for a pressure test per API 577 |
30 min |
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Minimum duration of hydro to evaluate integrity of buried pipe |
8 hours |
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Max external inspection interval for class 1&2 piping |
5years |
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Maximum interval for relief devices in fouling or corrosive service |
5years |
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Suggested interval for class interval potential survey of buried pipe with poor CP |
3-5 years |
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Max time a welder or welding operator maintains qualifications for a process without using |
6 months |
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Suggested interval for. Above graded visual surveillance of buried pipe |
6 months |
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Maximum interval for relief devices in non fouling or non corrosive service |
10 year |
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Minimum years of experience for owners inspector during new fabrication |
10 years |
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Maximum external inspection interval for class 3 piping |
10 years |
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Max thickness inspection interval for an injection point |
Lesser: 3yr or half-life |
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Max calibrating interval- RT densitometer |
90 days |
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Minimum time for obtaining thickness readings when corrosion rate on new pipe is not known (no other data available) |
3 months |
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Max time a welder or welding operator maintains qualifications for a process without using ryhst procrastination |
6 months |
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Suggested interval for. Above graded visual surveillance of buried pipe max |
6 months |
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Max interval for for a visual examiners eye exam |
1 year |
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Max interval to calibrate pressure gauge used in testing |
1 year |
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Length of time before an API 570 AI must recertify |
3 years |
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Max thickness inspection interval for an for an injection point |
Lesser: 3yr or half-life |
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Maximum interval for RBI reassessment |
10 years |
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NDE- maximum pipe size for performing an elliptical shot |
3 NPS |
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Pipe sizes can use profile RT to find localized corrosion |
Less than or equal 8 NPS |
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Pipe size where where pipe OD is equal to pipe size (NPS) |
Greater than or equal to 14 |
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Pipe size where pipe is almost always made using rolled and welded plate |
Greater than 16 NPS |
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Weight used to check magnetic strength of an AC yoke |
10lbs |
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Weight used to check magnetic strength of a magnetic DC yoke |
40lbs |
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Maximum thickness inspection interval for class 2&3 piping |
Lesser: 10year or half life |
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When should a temporary welded pipe repair be replaced |
Next opportunity |
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When shall non-welded repairs and temporary leak sealing devices be removed and pipe replaced |
Next turnaround |
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Max calibrating interval- check the light intensity of a black light used in a MT or PT exam |
Before and after use |
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Pipe size where RT is preferred for thickness readings |
Less than or equal 1NPS |
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Pipe size where UT thickness readings may require specialized equipment |
Less than or equal 2 NPS |
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Small bore piping |
Less than or equal 2 NPS |
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Maximum pipe size normally allowed for threaded pipe |
Less than or equal 2 NPS |
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Maximum pipe size normally allowed for socket welded pipe |
Less than or equal 2 NPS |
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Weight used to check magnetic strength of a permanent magnet yoke |
40lbs |
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Minimum angle of eye to part to count as a visual exam |
30 degrees |
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Two primary gamma-ray RT sources |
It-192 Cobalt-60 |
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Weld qualification- which welding process can a welder NOT be qualified by RT/UT |
GMAW-SC |
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Welding- variables needed on WPS |
Essential and non essential |
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Welding- minimum taper required for welds with mismatch |
30 degrees |
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Two most common CS materials |
A106 A53 |
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Maximum stress allowed during a pressure test |
90% of SMYS |
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Repair- maximum allowed SYMS for pipe if fillet welded patch is installed |
40,000psi |
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Lead letter used during RT to check for backscatter |
B |
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Lead letter used during RT to check for film side IQI |
F |
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Hole size that must be visible during RT when using a hole type IQI |
2T |
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NDE- minimum black light intensity when performing non-fourescent MT or PT or VT exams |
100ft candles |
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Minimum black light intensity when performing MT or PT fluorescent exams |
1000mW/cm2 |
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Maximum UT scanning speed |
6”/second |
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Maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon |
2T |
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Weld qualification- the “all position” test coupon |
6G |
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Weld qualification- reject-able in RT when qualifying a welder |
Crack, IP, LoF |
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Two primary gamma-ray RT sources |
It-192 Cobalt-60 |
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Weld qualification- which welding process can a welder NOT be qualified by RT/UT |
GMAW-SC |
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Welding- variables needed on WPS |
Essential and non essential |
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Welding- minimum taper required for welds with mismatch |
30 degrees |
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Two most common CS materials |
A106 A53 |
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Maximum stress allowed during a pressure test |
90% of SMYS |
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Repair- maximum allowed SYMS for pipe if fillet welded patch is installed |
40,000psi |
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Test- ph of water needed to reduce likelihood of MIC (bugs) |
>10ph |
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Test- pressure to perform inspection during a pressure test of pipe that has been in service |
Less than or equal MAWP |
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Typical external corrosion rate for dry rural areas |
<1mpy |
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Typical external corrosion rate for inland locations with moderate rain and humidity |
1-3 mpy |
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Lead letter used during RT to check for backscatter |
B |
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Possible external corrosion rate for industrial environments with acid or Sulphur compounds |
5-10 mpy |
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Possible external corrosion rate for marine locations |
20 mpy |
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Most commonly used welding process |
SMAW |
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GMAW transfer mode most likely to have LoF |
Short circuit |
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Most extensively used NDE method for welds |
Visual |
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Weld metal is most similar to what fab process |
Casting |
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Meaning of 1st two digits in the electrode designation for a SMAW electrode |
Strength |
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Meaning of “S” in the electrode designation for a GMAW or GTAW electrode |
Solid wire |
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RT film density of weld as compared to IQI (range) |
-15% to 30% |
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Mill tolerance for seamless pipe |
-12.5% |
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Most commonly used welding process |
SMAW |
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Hole size that must be visible during RT when using a hole type IQI |
2T |
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NDE- minimum black light intensity when performing non-fourescent MT or PT or VT exams |
100ft candles |
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Minimum black light intensity when performing MT or PT fluorescent exams |
100 mW/cm2 |
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Maximum UT scanning speed |
6”/second |
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Maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon |
2T |
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Weld qualification- the “all position” test coupon |
6G |
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Weld qualification- reject-able in RT when qualifying a welder |
Crack, IP, LoF |
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RT film density of weld as compared to IQI (range) |
-15% to +30% |
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% of welds to RT/UT when fabricating norm service pipe |
5% |
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%of welds to VT when fabricating normal service pipe |
5% |
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Overlap with a UT scan, % of transducer diameter |
10% |
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Amount of time inspector must be involved in inspection activities-required to maintain API-570 certification |
20% |
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Amount of nickel required for a material to be considered a nickel alloy |
>30% |
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% of visual and RT/UT required when fabbing severe cyclic pipe |
100% |
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Testing- Minimum pneumatic test pressure, % of design pressure |
110% |
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Testing-minimum test pressure for underground pipe. % of maximum operating pressure (testing in lieu of digging) |
110% |
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PRV- maximum set pressure for thermal relief valves, %of design pressure |
120% |
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Hydro-maximum chloride content of water when hydro testing austentic ss |
<50ppm |
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Document owner/user must have that is following API 570 |
QA/repair manual |
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Document required when owner audits inspection program |
Tracking system |
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Document required of examiners employer |
Certification records |
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Document required for each piping system |
Inspection plan |
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Document required for each PRD repair organization |
QA manual |
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Document required concerning personal at PRD repair organization |
Training program |
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Relatively uniform corrosion |
Sulfidation Sour water |
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Valves that should be inspected for thermal fatigue |
Cat reformer |
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Another record that the owner/user must maintain |
Inspection ISO’s |
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Another record that the owner/user must maintain |
Track repairs recommendations |
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Another record that the owner/user must maintain |
External inspections |
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Another record that the owner/user must maintain |
Track temporary repairs |
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Another record that the owner/user must maintain |
Deferrals |
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Records maintain by repair organization and available to the inspector |
WPS&WPQ |
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SCC can develop at hot spots, including where the heat tracing attaches to pipe |
Caustic |
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Where dew point corrosion often occurs |
Overhead fractionation |
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Potential for none or very few cmls on circuit |
Olefin cold side Anhydrous ammonia |
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