BS EN 14025:2018 – TC:2020 Edition
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Tracked Changes. Tanks for the transport of dangerous goods. Metallic pressure tanks. Design and construction
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 145 |
This document specifies the minimum requirements for the design and construction of metallic pressure tanks having a maximum working pressure exceeding 50 kPa (0,5 bar), for the transport of dangerous goods by road and rail and sea. This document includes requirements for openings, closures and structural equipment; it does not cover requirements of service equipment. For tanks for the transport of cryogenic liquids, EN 13530 1 and EN 13530 2 apply. Design and construction of pressure tanks according to the Scope of this document are primarily subject to the requirements of RID/ADR, Subsections 6.8.2.1, 6.8.3.1 and 6.8.5, as relevant. In addition, the relevant requirements of RID/ADR, Table A, columns 12 and 13, to Chapters 3.2, 4.3 and Subsection 6.8.2.4 apply. For the structural equipment RID/ADR, Subsections 6.8.2.2 and 6.8.3.2 apply, as relevant. The definitions of RID/ADR, Subsection 1.2.1, are referred to. For portable tanks see also RID/ADR, Chapter 4.2 and Sections 6.7.2 and 6.7.2. In addition, the relevant requirements of RID/ADR, Table A, Columns 10 and 11 to Chapters 3.2, 4.2, and Sections 6.7.2 and 6.7.3 apply. The paragraph numbers above relate to the 2017 issue of RID/ADR which are subject to regular revisions. This can lead to temporary non-compliances with EN 14025. This document is applicable to liquefied gases including LPG; however for a dedicated LPG standard see EN 12493. If not otherwise specified, provisions which take up the whole width of the page apply to all kind of tanks. Provisions contained in a single column apply only to: tanks according to RID/ADR Chapter 6.8 (left-hand column); portable tanks according to RID/ADR Chapter 6.7 (right-hand column).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 83 | undefined |
| 89 | 1 Scope 2 Normative references |
| 90 | 3 Terms, definitions and symbols 3.1 Terms and definitions |
| 91 | 3.2 Symbols |
| 92 | 4 Materials 4.1 General 4.2 Compatibility |
| 93 | 5 Design 5.1 General 5.2 Minimum shell thickness 5.3 Reduction of shell thickness |
| 94 | 5.4 Protection of the shell 5.5 Protection of equipment |
| 95 | 5.6 Other design requirements 6 Calculation 6.1 General 6.1.1 General 6.1.2 Calculation scheme for the wall thickness of metallic pressure tanks of RID/ADR Chapter 6.8 |
| 96 | 6.1.3 Calculation scheme for the wall thickness of metallic portable pressure tanks of RID/ADR Chapter 6.7 |
| 97 | 6.2 Design criteria |
| 99 | 6.3 Calculation for internal pressure 6.3.1 General 6.3.2 Wall thickness of the cylindrical section |
| 100 | 6.3.3 Wall thickness of ends 6.3.3.1 General 6.3.3.2 Design limitations 6.3.3.3 Thickness of hemispherical ends |
| 101 | 6.3.3.4 Thickness of torispherical ends |
| 103 | 6.3.3.5 Thickness of ellipsoidal ends |
| 104 | 6.3.4 Wall thickness of conical sections 6.3.4.1 General 6.3.4.2 Design limitations of the conical section 6.3.4.3 Determination of the wall thickness of the conical section |
| 106 | 6.3.5 Openings and reinforcements 6.3.5.1 Openings in the shell |
| 108 | 6.3.5.2 Nozzle reinforcement |
| 112 | 6.3.5.3 Manhole and inspection openings |
| 113 | 6.3.6 Manhole covers 6.3.6.1 Circular flat covers 6.3.6.2 Elliptical flat covers |
| 115 | 6.3.6.3 Domed covers |
| 117 | 6.3.6.4 Bolting requirements of covers |
| 118 | 6.3.6.5 Hinged manhole and cover assemblies 6.3.7 Flanges, joints, bolts |
| 120 | 6.4 Calculation for external pressure 6.4.1 General 6.4.2 Tanks, where external over pressure is part of operating conditions 6.4.3 Tanks, where external over pressure is not part of operating conditions 6.4.4 Test |
| 121 | 6.5 Tank to frame connection/interface 7 Construction and manufacturing 7.1 General requirements 7.2 Cutting |
| 122 | 7.3 Forming 7.3.1 General 7.3.2 Cold forming 7.3.3 Hot forming 7.3.3.1 General 7.3.3.2 Specific conditions for austenitic steels |
| 123 | 7.3.4 Ends 7.3.5 Heat treatment and normalizing 7.4 Welding 7.4.1 Qualification 7.4.2 Welded joints |
| 124 | 7.4.3 Examination and testing of welds 7.4.4 Temporary attachments 7.5 Manufacturing tolerances 7.5.1 Plate alignment |
| 125 | 7.5.2 Defects of form 7.5.3 Thickness 7.5.4 Dished ends 7.5.5 Cylindrical sections |
| 126 | 8 Repairs 8.1 General 8.2 Repair of surface defects in the parent metal 8.3 Repair of weld defects |
| 127 | Annex A (informative)Sample calculation for tank containers according to RID/ADR Chapter 6.8 A.1 Introduction A.2 Dimensions, characteristics of materials, operating and testing conditions |
| 128 | A.3 Calculation according to branch A A.4 Calculation according to branch B |
| 129 | A.5 Calculation according to branch C |
| 131 | A.6 Calculation according to branch D |
| 140 | A.7 Results |
| 142 | Annex B (informative)Explosion pressure shock resistant design of tanks |
