The sets specifications for the materials, design, fabrication, and testing of site-built, vertical, cylindrical, above-ground welded steel tanks for liquids at ambient and elevated temperatures. It serves as a key European standard, often replacing older national codes like DIN 4119 and aligning with Eurocode 3. Key Technical Requirements
For professionals accustomed to older national standards, understanding what EN 14015 replaced provides crucial context. In Germany, for example, superseded the long-standing standards DIN 4119-1:1979-06 and DIN 4119-2:1980-02 . The content was completely revised and limited to specifications for steel tanks for storing liquids at ambient temperatures and above. In many countries, this standard represents the European harmonization of tank design practices, moving away from disparate national rules.
The provisions apply to tanks operating under ambient storage temperatures or above. They target low-pressure scenarios, typically handling up to several millibars of internal pressure. Tanks subjected to severe high pressure fall outside this standard and are regulated under distinct pressure vessel codes like Directive 2014/68/EU (PED) . 2. Key Components of the EN 14015 PDF En 14015 Pdf
The BS EN 14015 standard dictates requirements for materials, fabrication, erection, and testing. Key technical limits include:
| Test Method | Application | |--------------|--------------| | | 100% of welds. | | Radiography (RT) | All shell butt welds – typically 10–20% spot (higher for thicker plates). | | Ultrasonic testing (UT) | Alternative to RT; required for thicker shells. | | Magnetic particle / Dye penetrant | Bottom-to-shell junction, nozzles, repairs. | | Vacuum box testing | Bottom plates (for leaks). | | Hydrostatic test | Mandatory – fill tank to design liquid level + test pressure. Hold for minimum 24 hours. | | Tank settlement monitoring | During hydrostatic test (recorded at multiple points). | The provisions apply to tanks operating under ambient
Understanding EN 14015: The European Standard for Atmospheric Storage Tanks
: Requirements for bottoms, shells, fixed/floating roofs, and accessory mountings like ladders and stairways. iTeh Standards Critical Review of Strengths and Limitations BS EN 14015 Tank Design Standards | PDF | Welding - Scribd moving away from disparate national rules.
The standard provides guidelines for several roof profiles based on process needs and vapor containment requirements:
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