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BS EN 13094:2020 Tanks for the transport of dangerous goods. Metallic gravity-discharge tanks. Design and construction, 2020
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviations [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols
- 3.3 Abbreviations
- 4 Service equipment
- 5 Materials [Go to Page]
- 5.1 General
- 5.2 Material properties [Go to Page]
- 5.2.1 Impact strength
- 5.2.2 Yield strength, tensile strength and elongation after fracture [Go to Page]
- 5.2.2.1 General
- 5.2.2.2 Yield strength and tensile strength
- 5.2.2.3 Elongation after fracture
- 5.3 Compatibility of tank materials with substances carried
- 6 Design [Go to Page]
- 6.1 Shell cross-section [Go to Page]
- 6.1.1 General
- 6.1.2 Requirements for shells of non-circular cross-section
- 6.1.3 Sumps and other projections outside the shell
- 6.1.4 Cut-out sections within the contour of a side or bottom of the shell
- 6.2 Design verification
- 6.3 Dynamic conditions
- 6.4 Pressure conditions
- 6.5 Partial vacuum conditions
- 6.6 Design temperature
- 6.7 Design stress
- 6.8 Shell thicknesses [Go to Page]
- 6.8.1 Minimum shell thickness
- 6.8.2 Reduction of shell thickness
- 6.9 Shell openings, neck rings and closures [Go to Page]
- 6.9.1 General
- 6.9.2 Inspection openings and manholes
- 6.9.3 Neck rings and closures
- 6.9.4 Cover plates
- 6.9.5 Mountings for service equipment
- 6.10 Shell partitions, surge plates and baffles
- 6.11 Shell supporting structure
- 6.12 Other attachments to the shell
- 6.13 Pipework passing through the shell [Go to Page]
- 6.13.1 General
- 6.13.2 Tank top drainage tubes passing through the shell
- 6.13.3 Service tubes passing through the shell
- 6.14 Protection of service equipment mounted on the tank top [Go to Page]
- 6.14.1 General requirements
- 6.14.2 Minimum requirements [Go to Page]
- 6.14.2.1 General
- 6.14.2.2 Longitudinal and transverse members
- 6.14.2.3 Shell contours
- 6.14.2.4 Spill-trays
- 6.14.2.5 Roll-over bars
- 6.14.2.6 Transverse box sections
- 6.15 Electrical bonding and earthing
- 7 Manufacture of the shell [Go to Page]
- 7.1 General
- 7.2 Cutting and edge preparation
- 7.3 Forming [Go to Page]
- 7.3.1 General
- 7.3.2 Hot forming — additional requirements
- 7.4 Welding [Go to Page]
- 7.4.1 Qualification
- 7.4.2 Welded joints
- 7.4.3 Temporary attachments
- 7.4.4 Examination and testing of welds
- 7.5 Manufacturing tolerances [Go to Page]
- 7.5.1 General
- 7.5.2 Plate alignment
- 7.5.3 Defects of form
- 7.5.4 Thickness
- 7.5.5 Ends
- 7.6 Rectification of defects [Go to Page]
- 7.6.1 General requirements
- 7.6.2 Rectification of weld defects
- 8 Marking
- Annex A (informative)Methods of design verification [Go to Page]
- A.1 General
- A.2 Dynamic testing [Go to Page]
- A.2.1 Methods for the verification of the loads specified in 6.3.2 [Go to Page]
- A.2.1.1 General
- A.2.1.2 Test a) — Braking
- A.2.1.3 Test b) — Driving over a bumpy track
- A.2.1.4 Test c) — Driving slowly in a circle of minimum diameter 15 m
- A.2.2 Test programme
- A.3 Finite element method [Go to Page]
- A.3.1 General [Go to Page]
- A.3.1.1 General
- A.3.1.2 Specific definitions and symbols
- A.3.2 Software selection
- A.3.3 Validation
- A.3.4 Finite element mesh
- A.3.5 Mesh criteria
- A.3.6 Approval
- A.3.7 Requirements relating to the methods for determining stresses [Go to Page]
- A.3.7.1 Assumption of linear elasticity
- A.3.7.2 Selection of methods for determining stresses
- A.3.8 Assessment criteria [Go to Page]
- A.3.8.1 General
- A.3.8.2 Stress criteria
- A.3.9 Permanent record
- A.4 Reference design
- A.5 Calculation method — worksheet [Go to Page]
- A.5.1 Introduction [Go to Page]
- A.5.1.1 General
- A.5.1.2 Methodology of the calculation method
- A.5.1.3 Principal characteristics of the shell
- A.5.1.4 Minimum thicknesses adopted
- A.5.1.5 Mandatory minimum thicknesses
- A.5.1.6 Verification of the stresses at test pressure
- A.5.1.7 Verification of the stresses in service condition
- A.5.2 Symbols and units [Go to Page]
- A.5.2.1 Main tank characteristics
- A.5.2.2 Calculation parameters
- A.5.3 Adopted thicknesses
- A.5.4 Mandatory thicknesses [Go to Page]
- A.5.4.1 Calculated thicknesses
- A.5.4.2 Required or equivalent thicknesses
- A.5.5 Verification of stresses at test pressure [Go to Page]
- A.5.5.1 Shell walls
- A.5.5.2 Formed ends having circular or non-circular cross-section
- A.5.6 Verification of stresses in service condition [Go to Page]
- A.5.6.1 Circumference stresses on shell walls
- A.5.6.2 Dynamic stresses
- A.5.6.3 Stresses in formed ends with circular or non-circular section
- A.5.6.4 Formed partitions having circular or non-circular cross-section
- A.5.7 Calculation of stress in shell attachments
- A.5.8 End made up of several welded elements
- Annex B (normative)Method of measurement of specific resilience [Go to Page]
- B.1 Principle
- B.2 Apparatus
- B.3 Samples of materials to be tested
- B.4 Procedure
- B.5 Results [Go to Page]
- B.5.1 Test values
- B.5.2 Calculation of results
- B.5.3 Acceptability of material
- B.6 Global resilience [see 6.8.2.2 i)]
- B.7 Comparative methods to calculate the energy absorbed during an overturning or impact [see 6.8.2.2 j)] [Go to Page]
- B.7.1 Calculation of absorbed energy
- B.7.2 Test procedure [Go to Page]
- B.7.2.1 Overturning
- B.7.2.2 Impact on lateral side and end
- B.7.3 Finite element analysis procedure to be adopted
- Annex C (normative)Design of neck rings, flanges and closures
- Annex D (informative)Examples of welding details [Go to Page]
- D.1 General
- D.2 Shell construction [Go to Page]
- D.2.1 Fillet welds
- D.2.2 Joint types [Go to Page]
- D.2.2.1 General
- D.2.2.2 Butt joints
- D.2.2.3 Lap joints
- D.2.2.4 Corner joints
- D.2.2.5 Joints, other than corner joints, of partitions, and surge plates
- D.3 Attachment of reinforcements [Go to Page]
- D.3.1 Attachment of reinforcements designed to absorb dynamic stress
- D.3.2 Attachment of reinforcements not designed to absorb dynamic stress
- D.4 Attachment of branches
- D.5 Attachment of flanges, collars and reinforcing pads to the shell
- D.6 Attachment of flanges onto branches
- D.7 Attachment of heating channels to shells [Go to Page]
