- Nondestructive Testing
- Risk Based Inspections
- Lab Testing & Failure Investigation
- Insulation Inspection
RBI, Risk Based Inspection
The key outcome of any RBI scheme is a prioritised and focused inspection schedule
This ensures high risk items get correct scrutiny and produces a safety focused and cost effective inspection scheme.
RBI is now recognised as a key tool in meeting legislative requirements, as detailed in the HSE's best practice guidelines,
Using RBI Programme, Risk is reduced to a greater degree than at the same cost using a Typical Inspection Programme
Using a RBI Scheme a piece of equipment is given a Risk rating based on failure Probability versus Consequence.
RBI Scheme helps avoid over-inspection of low risk equipment and puts focus on equipment that has High Probability and High Risk of failure
RBI Scheme
- Assessment of the credible threats to a piece of equipment.
- Potential failure modes and mitigation measures
- Resulting consequences
- Associating a measure of risk with each item
- Combine risk with inspection history to determine future inspection intervals and methodologies
- Carry out inspection to requirements
Implementation process - Vessels
- Extract historical wall thickness data
- Review data - estimate corrosion rates and minimum wall thickness
- Rank vessels according to susceptibility/remnant life
- Define inspection requirements
- Define repair/replacement requirements
- Carry out inspection to requirements