✅ – Uses EN 1993-1-6 for shell stability, EN 1991-4 for wind/snow loads. Ideal for projects in EU/UK. ✅ Site-built focus – Explicitly covers field erection, unlike shop-welded tank standards. ✅ Clear hydrostatic test procedure – More prescriptive than some older national standards. ✅ Frangible roof joint – Annex C provides a direct method for weak roof-to-shell weld to avoid tank rupture during overpressure. ✅ Material grades – Includes common European steels (S235, S275, S355) with J0, J2, K2 impact grades.
| Use case | Recommendation | |----------|----------------| | Tank in EU/UK, ambient service, atmospheric or low pressure | ✅ First choice | | Tank in USA, Middle East, Asia (non-EU) | Use API 650 instead | | Refrigerated or cryogenic service | ❌ Use EN 14620 or API 620 | | High internal pressure (>50 mbar) | ❌ Use EN 13445 (pressure vessel) | | Fast, standard oil/water tank | ✅ Acceptable alternative to API 650 | En 14015 Pdf