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NS EN 12285-1 : 1ED 2003
Current
The latest, up-to-date edition.
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WORKSHOP FABRICATED STEEL TANKS - PART 1: HORIZONTAL CYLINDRICAL SINGLE SKIN AND DOUBLE SKIN TANKS FOR THE UNDERGROUND STORAGE OF FLAMMABLE AND NON-FLAMMABLE WATER POLLUTING LIQUIDS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Designation and purchaser's specification
6 Materials
6.1 General
6.2 Materials for shell, dished ends and manholes
6.3 Materials for tank accessories
6.4 Consumable
6.5 Material inspection documentation
7 Design
7.1 Forms of construction
7.2 Single skin tanks
7.3 Double skin tanks
7.4 Dished ends
7.5 Compartments
7.6 Dimensions
7.6.1 Material thickness
7.6.2 Secondary skin
7.6.3 Interstitial space
7.7 Tolerances
7.8 Shell plate arrangement
7.9 Manholes and inspection covers
7.10 Structural bolts
7.11 Tank fittings, pipes and nozzles
7.12 Stiffening rings
7.13 Lifting lugs
8 Fabrication
8.1 Plate preparation
8.2 Shell plate forming
8.3 Types of joints
8.4 Welding procedures, welders' qualifications
8.5 External coating
9 Testing
9.1 General
9.2 Pressure testing
9.3 Testing of the external coating
10 Handling and installation
10.1 Handling
10.2 Installation
11 Marking of the tank and manufacturer's statement
11.1 Marking of the tank
11.2 Manufacturer's statement
11.3 Drawings
Annex A (informative) Transport, storage and installation
procedure
Annex B (informative) Evaluation of liquid-material-combinations
for storage tanks according to this standard
Annex C (informative) A-deviations
Bibliography
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