DIRECT ANSWERA pressure test challenges pressure-boundary strength or integrity at a specified test condition; a tightness test checks whether the assembled boundary retains the required medium; a leak test seeks or quantifies leakage at defined locations or limits. Their media, pressure, hold time and acceptance criteria can differ.
Test-plan comparison
- Purpose: structural proof, overall tightness or located leak
- Medium, pressure, temperature and hold duration
- Instrumentation, isolation and safety boundary
- Leak criterion, witness and recorded result
Relevant manufacturing capability
- Manufacturing-stage quality planning
- Multi-method inspection and test coordination
- Traceable release and manufacturing-dossier records
Key notes
- A passed hydrotest does not by itself prove a later gas-tightness or service-leak requirement.