API 580 flashcards
API 580 · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Risk
- Risk is the combination of the probability of failure and the consequence of failure, used to rank equipment and prioritize inspection activities.
- Probability of Failure
- The likelihood that a component will fail to perform its intended function during a specified time period, often expressed as a category rather than a precise rate.
- Consequence of Failure
- The potential safety, health, environmental, economic, and business impacts resulting from a failure event, used to characterize the severity of failure.
- Damage Mechanism
- A mechanical, chemical, metallurgical, or physical process that causes deterioration of equipment and is a primary input to probability of failure assessment.
- RBI Assessment Scope
- The defined equipment boundaries, time frame, and objectives of an RBI study, established during planning to focus the assessment and resources.
- Risk Acceptance Criteria
- Predefined thresholds that separate acceptable from unacceptable risk and are used to judge the results of an RBI assessment and set priorities.
- RBI Team
- A multidisciplinary group with knowledge of process, equipment, materials, and inspection that plans and performs the RBI assessment.
- Process Data
- Information such as fluid composition, pressure, temperature, and flow that is used to identify damage mechanisms and support probability and consequence assessments.
- Inspection History
- Records of past inspection methods, coverage, findings, and effectiveness that inform damage mechanism identification and probability of failure estimates.
- Data Quality
- The degree to which data are accurate, complete, relevant, and representative, which affects confidence in RBI results and decisions.
- POF Categories
- Discrete likelihood categories, often ranked on a logarithmic scale from 1 to 5, used to express probability of failure in an RBI assessment.
- Generic Failure Frequency
- A baseline failure rate for similar equipment that is adjusted with modifiers to estimate probability of failure in quantitative RBI methods.
- Remaining Life
- The estimated time before equipment reaches a condition that requires repair or replacement, used to set inspection intervals and assess probability of failure.
- Deterioration Rate
- The rate at which a damage mechanism reduces equipment integrity, such as corrosion rate or crack growth rate, used to estimate remaining life.
- Consequence Categories
- Discrete severity levels, often lettered A through E, used to express safety, environmental, and economic consequences of a failure event.
- Release Modeling
- Analysis of the size, dispersion, fire, or explosion effects of a hazardous release, used to estimate the consequences of equipment failure.
- Economic Consequence
- The monetary impact of a failure, including repair cost, production loss, and regulatory penalties, used in consequence assessment and risk ranking.
- Risk Matrix
- A grid that plots probability of failure categories against consequence categories to display risk levels and prioritize equipment for inspection.
- Risk Driver
- The factor, either probability of failure or consequence of failure, that dominates the risk of an equipment item and guides mitigation.
- Risk Ranking
- The ordering of equipment by calculated risk, used to allocate inspection and mitigation resources to the highest-risk items.
- Inspection Effectiveness
- The degree to which an inspection activity can detect and quantify a specific damage mechanism, which affects how much uncertainty and risk are reduced.
- Inspection Interval
- The time between inspections, set using risk level, deterioration rate, remaining life, and inspection effectiveness to ensure damage is detected in time.
- Inspection Plan
- A documented schedule of inspection methods, coverage, and frequency for equipment, developed from the RBI assessment and targeting relevant damage mechanisms.
- Risk Mitigation
- Actions such as repair, replacement, operational changes, or protective measures taken to reduce probability or consequence of failure when inspection alone is insufficient.
- Fitness-for-Service
- An engineering evaluation of whether equipment with known damage is suitable for continued service, used to decide run, repair, or replace.
- Corrosion Inhibitor
- A chemical added to a process stream to reduce the corrosion rate, a mitigation measure that can lower probability of failure for corrosion damage mechanisms.
- Reassessment Trigger
- An event such as an inspection finding, process change, or failure that requires the RBI assessment to be reviewed and updated.
- RBI Documentation
- Records of the methodology, assumptions, data sources, calculations, and results of an RBI assessment that support traceability and future reassessments.
- Recordkeeping
- The maintained retention of equipment data, inspection results, and risk assessments for audit, regulatory, and reassessment purposes.
- RBI Practitioner
- A person trained and experienced in RBI methods and damage mechanisms who performs or leads an RBI assessment.
- Inspector Certification
- A credential such as API 510, API 570, or API 653 that demonstrates competency in inspection of specific equipment types and supports RBI activities.
- Competency Assessment
- The process of evaluating whether personnel have the knowledge, skills, and experience required to perform assigned RBI and inspection roles.