Full definition
Test verifying structural integrity and leak-tightness of a system or pressure vessel by subjecting it to above-working pressure. Typical test pressure: 1.5× rated (ASME, PED). Types: hydrostatic (water — safer, incompressible) and pneumatic (air/gas — requires extra precautions). Duration: 5-30 min. Acceptance: no visible leaks, stable pressure. Standards: EN 1779, ASME B31.3, ISO 10462. Equipment: Hydratight, SPX.