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BS EN 12972:2018 Tanks for transport of dangerous goods. Testing, inspection and marking of metallic tanks, 2018
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviations [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols and abbreviations
- 4 Inspections and tests [Go to Page]
- 4.1 General
- 4.2 Inspection for type approval [Go to Page]
- 4.2.1 General
- 4.2.2 Content of inspection [Go to Page]
- 4.2.2.1 Inspection for initial type approval
- 4.2.2.2 Inspection for modifications to a type approval
- 4.2.3 Documentation
- 4.3 Inspection for modification of a tank
- 4.4 Initial inspection [Go to Page]
- 4.4.1 Content of inspection
- 4.4.2 Documentation, certificate and marking
- 4.5 Periodic inspection [Go to Page]
- 4.5.1 Content of inspection
- 4.5.2 Documentation, certificate and marking
- 4.6 Intermediate inspection [Go to Page]
- 4.6.1 Content of inspection
- 4.6.2 Documentation, certificate and marking
- 4.7 Exceptional checks [Go to Page]
- 4.7.1 General
- 4.7.2 Exceptional check after damage or repair of the shell
- 4.7.3 Exceptional check after the repair or replacement of service equipment
- 4.7.4 Exceptional check after replacement of service equipment involving the application of heat
- 4.7.5 Exceptional check after alteration to the tank
- 4.7.6 Exceptional check after exchange or repair of frame or structural equipment
- 4.7.7 Exceptional check before and after repair or replacement of the protective lining or coating
- 4.7.8 Documentation, certificate and marking
- 5 Procedures and documentation for inspections and tests [Go to Page]
- 5.1 General
- 5.2 Examination of documents [Go to Page]
- 5.2.1 Inspection for type approval [Go to Page]
- 5.2.1.1 Required documents
- 5.2.1.2 Examination of documents
- 5.2.2 Initial inspection [Go to Page]
- 5.2.2.1 Required documents
- 5.2.2.2 Examination of documents
- 5.2.3 Periodic inspection [Go to Page]
- 5.2.3.1 Required documents
- 5.2.3.2 Examination of documents
- 5.2.4 Intermediate inspection [Go to Page]
- 5.2.4.1 Required documents
- 5.2.4.2 Examination of documents
- 5.2.5 Exceptional check [Go to Page]
- 5.2.5.1 Required documents
- 5.2.5.2 Examination of documents
- 5.3 Check of the design characteristics [Go to Page]
- 5.3.1 Content of inspection
- 5.3.2 Examination of the manufacturing conditions
- 5.3.3 Inspection of the materials and wall thicknesses
- 5.3.4 Examination of the manufacturing methods
- 5.3.5 Inspection of main dimensions
- 5.3.6 NDT of the welds [Go to Page]
- 5.3.6.1 General
- 5.3.6.2 Limitations of NDT methods
- 5.3.6.3 Visual testing
- 5.3.6.4 Penetrant testing, magnetic particle testing and eddy current testing
- 5.3.6.5 Radiographic inspection
- 5.3.6.6 Ultrasonic inspection
- 5.3.7 Mechanical tests [Go to Page]
- 5.3.7.1 General
- 5.3.7.2 Tensile test
- 5.3.7.3 Bend tests
- 5.3.7.4 Impact tests
- 5.3.7.5 Macro examination
- 5.4 Inspection of the shell interior [Go to Page]
- 5.4.1 Inspection of the condition of the shell
- 5.4.2 Inspection of protective lining or coating
- 5.5 Inspection of the tank exterior [Go to Page]
- 5.5.1 Inspection of the condition of the tank
- 5.5.2 Inspection of the fastenings of the tank and its structural equipment
- 5.5.3 Inspection of marking
- 5.5.4 Inspection of earth connection
- 5.6 Hydraulic pressure test [Go to Page]
- 5.6.1 General
- 5.6.2 Extent of test
- 5.6.3 Test pressure [Go to Page]
- 5.6.3.1 Test pressure of the whole tank
- 5.6.3.2 Test pressure of compartments
- 5.6.3.3 Test of heating equipment
- 5.6.4 Test liquid
- 5.6.5 Gas as test fluid
- 5.6.6 Pressurization
- 5.6.7 Test duration
- 5.6.8 Measurement
- 5.6.9 Evaluation of the test
- 5.7 Vacuum testing [Go to Page]
- 5.7.1 Test procedure
- 5.7.2 Measurement
- 5.7.3 Evaluation of the test
- 5.8 Leakproofness test [Go to Page]
- 5.8.1 General
- 5.8.2 Extent of test
- 5.8.3 Leakproofness test pressure
- 5.8.4 Leakproofness test fluid
- 5.8.5 Pressurization [Go to Page]
- 5.8.5.1 General
- 5.8.5.2 Only liquid as test fluid
- 5.8.5.3 Liquid and gas as test fluids
- 5.8.5.4 Only gas as test fluid
- 5.8.6 Test duration
- 5.8.7 Special leakproofness test of the mounting of certain items of equipment [Go to Page]
- 5.8.7.1 Service equipment designed to work at a maximum pressure lower than the leakproofness test pressure of the tank
- 5.8.7.2 Relief valve preceded by a bursting disc
- 5.8.8 Evaluation of the test
- 5.9 Determination of water capacity
- 5.10 Inspection of service equipment [Go to Page]
- 5.10.1 General
- 5.10.2 Inspection of service equipment for type approval of the tank
- 5.10.3 Inspection of service equipment for other inspections
- 5.10.4 Check of satisfactory operation of service equipment [Go to Page]
- 5.10.4.1 General
- 5.10.4.2 Flanged connections
- 5.10.4.3 Safety and breather devices
- 5.10.4.4 Pipework
- 5.11 Inspection of frame or other structural equipment of portable tanks and tank containers [Go to Page]
- 5.11.1 Inspection of frame or other structural equipment for type approval
- 5.11.2 Initial, periodic, intermediate inspection and exceptional check of the frame or other structural equipment of portable tanks and tank containers
- 5.12 Dynamic longitudinal impact test [Go to Page]
- 5.12.1 Portable tanks
- 5.12.2 Tank-wagons
- 5.13 Test report, certificate and marking [Go to Page]
- 5.13.1 Test report for type approval
- 5.13.2 Certificate of initial, periodic and intermediate inspection and exceptional check
- 5.13.3 Marking
- Annex A (informative)Applicable items of tank inspection — Survey Table
- Annex B (normative)Technical data sheet for type approval
- Annex C (informative)Certificate of initial, periodic and intermediate inspection and exceptional check
- Annex D (informative)Tank plates for fixed tanks (tank vehicles) and demountable tanks for the transport of dangerous goods [Go to Page]
- D.1 Tank plate
- D.2 Content of the marking of the tank plate
- Annex E (normative)Tank plates for tank containers for the transport of dangerous goods [Go to Page]
- E.1 Tank plate for tank containers for the transport of dangerous goods
- E.2 Tank plate for tank containers for the transport of gases
- Annex F (normative)Manufacturing tolerances (based on EN 134454 [16]) [Go to Page]
- F.1 Surface geometry of welds
- F.2 Middle line alignment
- F.3 Surface alignment [Go to Page]
- F.3.1 Surface linear misalignment between parts
- F.3.2 Joining of parts of different thickness
- F.4 Tolerances for tanks [Go to Page]
- F.4.1 External diameter
- F.4.2 Out of roundness
- F.4.3 Deviation from the longitudinal axis
- F.4.4 Irregularities in profile
- F.4.5 Middle line angular misalignment
- F.4.6 Dished ends [Go to Page]
