6 Interval/Frequency and Extent of Inspection Flashcards
- 2 Inspection During Installation and Service Changes
- 2.1 Piping Installation
Piping shall be inspected in accordance with ________ requirements at the time of installation
code of construction
- 2 Inspection During Installation and Service Changes
- 2.2 Piping Service Change
If the service conditions of the piping system are changed, i.e. will exceed the current operating envelope (e.g., process contents, maximum operating pressure, and the maximum and minimum operating temperature), inspection intervals shall be established for the ______, including the review of applicable pressure relieving device settings.
new service conditions
- 2 Inspection During Installation and Service Changes
- 2.2 Piping Service Change
If both the ownership and the location of the piping are changed, the piping shall be inspected ____it is reused
before
- 3 Piping Inspection Planning
- 3.3 Setting Inspection Intervals Without the Use of RBI
If RBI is not being used, the interval between piping inspections shall be established and maintained by using the following criteria:
a) the ____ and _______calculations;
b) the _____ classification (see 6.3.4);
c) the applicable ____requirements;
d) and the judgment of the inspector, the piping engineer, the piping engineer supervisor, or a materials specialist, based on operating conditions, previous inspection history, etc
a) corrosion rate, remaining life
b) piping service
c) jurisdictional
- 3 Piping Inspection Planning
- 3.3 Setting Inspection Intervals Without the Use of RBI
The _____ or _____ shall establish inspection intervals for thickness measurements and external visual inspections and, where applicable, for internal and supplemental inspections
owner/user, the inspector
- 3 Piping Inspection Planning
- 3.3 Setting Inspection Intervals Without the Use of RBI
The inspection interval shall be reviewed and adjusted as necessary after each inspection or __________ and/or inspection results
significant change in operating conditions
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
All process piping systems shall be ________into different piping classes except for piping that has been planned on the basis of RBI
categorized
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
Owner/users shall maintain a record of _____, including their classifications
process piping fluids handled
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.2 Class 1
Services with the highest potential of resulting in an _______if a leak were to occur
immediate emergency
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.2 Class 1
Examples of Class 1 piping include, but are not necessarily limited to, those containing the following:
a) Flammable services
b) Pressurized services that can rapidly vaporize during release
c) Hydrogen sulfide (greater than 3 % weight) in a gaseous stream.
d) Anhydrous hydrogen chloride.
e) Hydrofluoric acid in main and trace acid services per API RP 751.
f) Piping over or adjacent to water and piping over public throughways (refer to national or local regulations.
g) Flammable services operating above their auto-ignition temperature
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.3 Class 2
This classification includes the majority of ______and selected _____ piping
unit process piping , off-site
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.3 Class 2
Typical examples of these services include but are not necessarily limited to those containing the following:
a) on-site hydrocarbons that will slowly vaporize during release
b) on-site hydrogen, fuel gas, and natural gas,
c) on-site strong acids and caustics.
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.4 Class 3
Services that are either flammable but do not __________ when they leak
significantly vaporize
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.4 Class 3
Services that are potentially harmful to human tissue but are located in ______may be included in this class
remote areas
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.4 Class 3
Examples of Class 3 service include, but are not necessarily limited to, those containing the following:
a) on-site hydrocarbons that will ______ vaporize during release such as those operating below the flash point;
b) ______distillate and product lines to and from storage and loading;
c) ____farm piping;
d) ______acids and caustics;
e) off-site ______, fuel gas and natural gas; and
f) Other lower risk hydrocarbon piping that does not fall in Class 1, 2, or 4.
a) not significantly
b) off-site
c) tank
d) off-site
e) hydrogen
f) Other lower risk hydrocarbon piping that does not fall in Class 1, 2, or 4.
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.5 Class 4
Services that are essentially ________ and nontoxic are in Class 4, as are most ______services
nonflammable, utility
- 3 Piping Inspection Planning
- 3.4 Piping Service Classes
- 3.4.5 Class 4
Examples of Class 4 service include, but are not necessarily limited to, those containing the following:
a) steam and steam _______;
b) air;
c) nitrogen;
d) water, including boiler feed water or stripped ____ water;
e) lube oil, seal oil;
f) ASME B31.3, Category _____ services;
g) plumbing and sewers.
a) condensate;
b) air;
c) nitrogen;
d) sour
e) lube oil, seal oil;
f) D;
g) plumbing and sewers.
6.4 Extent of Visual External and CUI Inspections
This external visual inspection for potential CUI is also to assess insulation condition and shall be conducted on all piping systems ______to CUI
susceptible
6.4 Extent of Visual External and CUI Inspections
NDE inspection for CUI should also be conducted as listed in Table 2 at suspect locations operating between ______ and ____ for carbon steel and low alloy steel piping
10 °F (–12 °C), 350 °F (175 °C)
6.4 Extent of Visual External and CUI Inspections
Piping systems that are known to have a remaining life of over __ years or that are adequately protected against external corrosion need not be included for the NDE inspection recommended in Table 2
10
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.1 CML Monitoring
CMLs to be monitored at each inspection shall be determined by the ______ in consultation with a ______ and/or corrosion specialist where non-uniform corrosion or other damage mechanisms are expected
inspector; piping engineer
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.1 CML Monitoring
If RBI is used to set the inspection interval or due date, CMLs not required for inspection per the RBI assessment ______to be inspected in accordance with the recommended maximum inspection intervals in Table 1
do not need
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.2 Point-to-Point Method
An analysis method, whereby the corrosion rate, remaining life and re-inspection interval is determined for each _______
individual CML
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.2 Point-to-Point Method
Future inspections are managed based on the worst case _____ established at each CML location
1/2 life
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.2 Point-to-Point Method
During a re-inspection of a piping system, all of the CMLs may be re-inspected or only those that are _____
coming due.
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.3 Circuit Analysis Method
Approach is generally applicable to damage mechanisms that produce _____ and some mildly localized corrosion environments
uniform
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.3 Circuit Analysis Method
Locations that exhibit significantly different corrosion rates and locations with shorter remaining life may need to be _________
analyzed separately.
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.3 Circuit Analysis Method
A ______ should be considered to check the statistical confidence factor given the variability of the data set (within a circuit).
sampling statistic
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.3 Circuit Analysis Method
As a minimum, the worst-case CMLs within the circuit shall be inspected at the _______________
next established inspection interval.
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.4 Data Analysis
Where localized damage mechanisms are expected, sampling should include the_______(top/bottom, inside/outside radius, etc.) to help identify the specific active mechanism and provide data for future adjustments to CML locations
orientation
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.4 Data Analysis
The number and specific CMLs to be monitored at each inspection shall be determined by the _______ in consultation with a ______________ where non-uniform corrosion or other damage mechanisms are expected.
inspector, piping engineer and/or corrosion specialist
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.4 Data Analysis
CMLs that are not driving the next inspection interval do not necessarily need to be inspected in accordance with the recommended maximum inspection intervals in ______
Table 1
- 5 Extent of Thickness Measurement Inspection and Data Analysis
- 5.4 Data Analysis
In addition, some CMLs may be documented as __________. Although these CMLs may be maintained within the system (or electronic IDMS), they do not need to be measured on calculated intervals and would not be considered as ______.
“inactive” or “archived”, overdue.
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.1 Small Bore Piping (SBP)
Class 1 and 2 secondary SBP shall be inspected to the same requirements as ____________
primary process piping.
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.1 Small Bore Piping (SBP)
Class 1 and 2 secondary SBP shall be inspected to the same requirements as ____________
primery process piping
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.1 Small Bore Piping (SBP)
Inspection of Class 3 and Class 4 secondary SBP is _____at the owner-users discretion depending upon reliability and risk.
optional
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.1 Small Bore Piping (SBP)
_______ and radiography are the preferred inspection methods for insulated SBP
Insulation stripping
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.2 Deadleg Inspection
Inspections of horizontal deadlegs that may not be liquid full should have examination points in __________of any CMLs.
all four quadrants
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.2 Deadleg Inspection
Potentially corrosive deadlegs with CMLs should be tracked in a separate ________ from the mainline piping
piping circuit
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.2 Deadleg Inspection
Inspections should include profile radiography on small diameter deadlegs, such as vents and drains, and scanning UT or RT on larger diameter deadlegs. Other examination techniques for deadlegs include _______
EMAT and PEC
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.2 Deadleg Inspection
Deadlegs that may collect water and be susceptible to freezing from external ambient conditions should be adequately insulated and _______for such cases.
heat traced
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.3 Auxiliary Piping Inspection
Inspection of auxiliary SBP associated with instruments and machinery is ______ and the need for which would typically be determined by risk assessment
optional
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.3 Auxiliary Piping Inspection
Criteria to consider in determining whether auxiliary SBP will need some form of inspection include the following:
a) piping _________;
b) potential for environmental or fatigue cracking, particularly on non-braced SBP (e.g. reciprocating and centrifugal compressors, flow induced vibration);
c) potential for corrosion based on experience with adjacent primary systems;
d) potential for ____;
e) potential for fatigue, erosion and/or corrosion on thermowells.
a) classification;
b) potential for environmental or fatigue cracking, particularly on non-braced SBP (e.g. reciprocating and centrifugal compressors, flow induced vibration);
c) potential for corrosion based on experience with adjacent primary systems;
d) CUI;
e) potential for fatigue, erosion and/or corrosion on thermowells.
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.4 Threaded-connection Inspection and Mitigation
When selecting CMLs on threaded connections, include those threaded connections that can be ______ during scheduled inspections
radiographed
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.4 Threaded-connection Inspection and Mitigation
When seal-welding threaded connections to reduce likelihood of threaded connection failure scenarios, pay close attention to weld prep cleanliness to avoid welding defects and cover _______ completely.
all threads
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.4 Threaded-connection Inspection and Mitigation
SBP connections associated with rotating equipment, especially threaded connections are often subject to ______ damage.
fatigue
- 6 Extent of Inspections on Small-bore Piping, Deadlegs, Auxiliary Piping, and Threaded Connections
- 6.4 Threaded-connection Inspection and Mitigation
As such, they should be periodically assessed and considered for possible renewal with a thicker wall or upgrading ______
joint design
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.1 General
PRDs shall be tested and repaired by a _________ experienced in pressure relieving device maintenance
repair organization
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.2 Quality Assurance Process for PRDs
Each equipment repair organization shall have a fully documented ____________
quality assurance system
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.2 Quality Assurance Process for PRDs
Each repair organization shall also have a fully documented ______ that shall ensure that repair personnel are qualified within the scope of the repairs.
training program
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.3 PRD Testing and Inspection Intervals
- 7.3.1 General
The inspection interval for all pressure- relieving devices is determined by the __________ or other qualified individual per the owner/user’s quality assurance system.
inspector, engineer,
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.3 PRD Testing and Inspection Intervals
- 7.3.2 PRD Testing and Inspection Intervals
Unless documented experience and/or an RBI assessment indicates that a longer interval is acceptable, test and inspection intervals for pressure-relieving devices in typical process services should not exceed:
a) _____for typical process services, and
b) _____for clean (non-fouling) and noncorrosive services.
a) 5 years
b) 10 years
- 7 Inspection and Maintenance of Pressure-relieving Devices (PRDs)
- 7.3 PRD Testing and Inspection Intervals
- 7.3.2 PRD Testing and Inspection Intervals
As a default criteria for a valve being stuck shut, use a max ____ of set pressure beyond which the valve is classified as stuck shut if it does not pop, and the test is discontinued
150 %
