BS EN 12818:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
LPG equipment and accessories. Inspection and requalification of LPG tanks up to and including 13 m3 underground
Hardcopy , PDF
31-01-2010
English
31-07-2006
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Safety
3.1 Safety precautions
3.2 Unsafe conditions
3.3 Leaks
4 Written scheme
5 Tank inspection and requalification
5.1 Routine inspection
5.2 Periodic inspection
5.3 Requalification
6 Inspection of tank and tank fittings
6.1 Tank
6.2 Tank fittings and immediate pipework
6.3 Valve cover
6.4 Bonding
6.5 Pressure relief valve
6.6 Pressure gauge
6.7 Contents gauges
6.8 Shut-off valves
6.9 Studs, bolts, nuts, and washers
6.10 Corrosion protection system
7 Site inspection
7.1 Storage site
7.2 Warning notices
8 Competence
8.1 Routine inspection
8.2 Periodic inspection
8.3 Requalification
9 Records
9.1 Tank data
9.2 Reports
Annex A (informative) Internal visual inspection
A.1 General
A.2 Inspection techniques
A.3 Records
A.4 Additional inspection
Annex B (informative) Hydraulic pressure test
Annex C (informative) Acoustic emission testing
C.1 General
C.2 Safety precautions
C.3 Acceptance criteria
Annex D (informative) Ultrasonic thickness test
D.1 General
D.2 Apparatus setting
D.3 Control measurement
D.4 Shell thickness measurements
D.5 End thickness
D.6 Interpretation
D.7 Rejection criteria
Annex E (informative) External monitoring by camera
E.1 General
E.2 Inspection procedure
E.3 Interpretation of results
E.4 Records
Annex F (informative) Monitoring cathodic protection with
sacrificial anodes
F.1 General
F.2 Records
F.3 Procedure
F.4 Measurement of the galvanic current
F.5 Measurement of the potential difference of the tank
to earth
F.6 Results
Annex G (informative) Monitoring cathodic protection by
impressed current
G.1 General
G.2 Apparatus
G.3 Conditions
G.4 Isolation resistance of the coating
G.4.1 Procedure
G.4.2 Calculation
G.5 Results
G.6 Checking intervals
Annex H (informative) Corrosion monitoring by moisture and
condensation detection
H.1 General
H.2 Equipment characteristics
H.3 Monitoring
H.4 Interpretation
Annex I (informative) Assessment of tanks by sampling
I.1 General
I.2 Homogeneous batch
I.3 Selection of samples
I.4 Sample selection
I.5 Inspection period
I.6 Presentation of results and decisions
I.7 Pass criteria
I.8 Example calculation of a sample
Annex J (informative) Example of a report
Annex ZA (informative) A-deviations
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