📌 This part of the standard is used for design before putting a vessel into service, though it can be adapted for in-service analysis. If you'd like to dive deeper, I can look into:
It is a harmonized standard under the European Pressure Equipment Directive (PED) . EN 13445-3
The latest major revision is EN 13445-3:2021 , with an active amendment A1:2025 . 📌 This part of the standard is used