UNE-EN 1473:2017

Foreword
0 Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Safety and environment
    4.1 General
    4.2 Installation and its environment
    4.3 Threshold values
    4.4 Hazard assessment
    4.5 Safety measures on the LNG plant
    4.6 Hazards and operability study (HAZOP)
5 Liquefaction plants
    5.1 General description
    5.2 Gas treatment
    5.3 Cold box design
    5.4 Refrigerant storage
6 Storage and retention systems
    6.1 Tank categories
    6.2 Design principles
    6.3 General design rules
    6.4 Foundations
    6.5 Operating instruments
    6.6 Pressure and vacuum protection
    6.7 Bund wall and impounding area
    6.8 Safety equipment
    6.9 Tank piping
    6.10 Distance between tanks
    6.11 Commissioning and decommissioning
    6.12 Testing
7 LNG pumps
    7.1 Generality
    7.2 Field of application
    7.3 Materials
    7.4 Specific requirements
    7.5 Inspection and testing
8 Vaporization of LNG
    8.1 General requirements
    8.2 General design rules
    8.3 Vaporizer categories
    8.4 Specific vaporizer requirements
9 Pipework
    9.1 The piping systems of an LNG plant
    9.2 Rules relating to the design of the different
          piping systems of an LNG plant
    9.3 Proof tests
    9.4 Piping components
    9.5 Thermal insulation
    9.6 Pipe rack/pipe way
    9.7 Impounding basin
    9.8 Corrosion
10 Reception/send out of natural gas
    10.1 Metering
    10.2 Gas quality
    10.3 Odorizisng
11 Boil off recovery and treatment plants
    11.1 General
    11.2 Boil off collection system
    11.3 System of gas return to tanker(s) or to
          export terminal
    11.4 Boil off gas recovery
    11.5 Gas compressor
    11.6 Flare/vent
12 Auxiliary circuits and buildings
    12.1 Electrical equipment and instrumentation
    12.2 Lightning and earthing
    12.3 Cathodic protection
    12.4 Warning lights
    12.5 Sea water supply for open rack vaporizer
    12.6 Mercury removal plant
    12.7 Instrument air
    12.8 Fuel (utility) gas
    12.9 Nitrogen system
    12.10 Buildings
13 Fixed protection equipment
    13.1 Detection
    13.2 Fire fighting
14 Control systems
    14.1 General description
    14.2 Process control system
    14.3 Safety control system
    14.4 Access control system
    14.5 Anti-intrusion system
15 Construction, commissioning and turnaround
    15.1 Quality assurance and quality control
    15.2 Acceptance tests
    15.3 Preparation at start-up and shutdown
16 Painting, fire proofing and embrittlement protection
    16.1 Painting
    16.2 Fire proofing
    16.3 Embrittlement protection
Annex A (normative) Definition of the actions to be applied
to LNG tanks
Annex B (normative) Definitions of reference flow rates
Annex C (normative) Acceptance tests of LNG tanks
Annex D (normative) Specific requirements for LNG pumps
Annex E (normative) Specific requirements for LNG vaporizers
Annex F (normative) Actions for the design of pipelines
Annex G (informative) Description of the different onshore
installations for LNG
Annex H (informative) Definition of different types of LNG
tanks
Annex J (informative) Probabilities ranges
Annex K (informative) Classes of consequence
Annex L (informative) Levels of risk
Annex M (informative) Typical process steps of liquefaction
Annex N (informative) Odorant systems requirements
Annex P (informative) Bibliography

This European Standard gives guidelines for the design, construction and operation of all onshore liquefied natural gas (LNG) installations including those for the liquefaction, storage, vaporisation, transfer and handling of LNG.This European Standard is valid for plants with LNG storage at pressure lower than 0.5 bar and capacity above 200t and for the following plant types:¾ðLNG liquefaction installations (plant), between the designated gas inlet boundary limit, and the outlet boundary limit which is usually the ship manifold and/or truck delivery station when applicable; feed gas can be from gas field, associated gas from oil field, piped gas from transportation grid or from renewables. ¾ðLNG regasification installations (plant), between the ship manifold and the designated gas outlet boundary limit;¾ðpeak-shaving plants, between designated gas inlet and outlet boundary limits ¾ðthe fix part of LNG bunkering station .A short description of each of these installations is given in Annex G.The plants with storage capacity between 5 and 200 t are covered by EN 13645 whilst storage capacity above 200 t will be covered by the prEN xxxx.Floating solutions (FPSO, FSRU, SRV), whatever off-shore or nearby shore, are not covered by this European standard even if some concepts, principles or recommendations could be applied. However, in case of berthed FSRU with LNG transfer across the jetty, the following recommendations shall apply for the jetty and topside facilities if the jetty is located within 3 000 m from the shore line.In case of FSU type solution, the tank safety functions as defined in clause 6 shall be checked and implemented. The on-shore part is covered by these standard recommendations.