Asset integrity guide
Liquid Penetrant Testing
Surface-breaking indication detection on suitable nonporous materials.
Safety boundary: this page explains integrity concepts only. It does not provide live electrical work, pressure-equipment repair/testing, confined-space entry, radiation-source handling, machinery operation or hazardous inspection procedures.
What this topic covers
Surface-breaking indication detection on suitable nonporous materials.
Core ideas
Penetrant methods rely on liquid entering surface-breaking discontinuities and later being made visible.
The method detects only features open to the examined surface.
Chemical handling, surface preparation and interpretation require controlled procedures.
Program tradeoffs
Coverage, access, technique limitations and uncertainty should be visible in the final record.
What good evidence looks like
Inspection findings need a closed path to engineering assessment, maintenance, monitoring or documented acceptance.
Lifecycle perspective
Formal code inspection and risk-based inspection require competent specialists and current standards.