Qualification and ValidationPQ

Performance Qualification

Performance Qualification documents that equipment or a system consistently performs effectively under actual or representative operating conditions.

What this term means in maintenance

Performance Qualification documents that equipment or a system consistently performs effectively under actual or representative operating conditions.

What PQ demonstrates

PQ may confirm:

  • Required capacity
  • Product quality
  • Repeatability
  • Process control
  • Operating conditions
  • Cleaning or environmental performance
  • User operation
  • Sustained results

Practical example

A filling line repeatedly produces acceptable output at approved speed using normal operators and materials.

PQ evidence

The protocol should define runs, conditions, samples, acceptance criteria, deviations, and conclusion.

Qualification sequence

IQ confirms installation.

OQ confirms controlled operation.

PQ confirms consistent intended performance.

Common mistake

Using one successful production run as complete PQ may not demonstrate repeatability.

How this term differs

Performance Qualification is documented confirmation of consistent performance in actual or representative use. It is related to Operational Qualification, Installation Qualification, and Commissioning, but these terms describe different records, measures, roles, strategies, or decisions and should not be used interchangeably.

Keep exploring connected CMMS, reliability, and maintenance planning terms.

Glossary FAQs

What does PQ stand for?

PQ stands for Performance Qualification.

What does PQ demonstrate?

Consistent effective performance under actual or representative operating conditions.

Is one successful run enough?

Usually not. The protocol should demonstrate repeatability under defined conditions.

Turn Maintenance Definitions Into Action

MaintBoard helps plant and facility teams move from scattered maintenance records to organized work orders, preventive maintenance schedules, spare parts control, inspections, calibration, and audit-ready history.