EN 1474-3:2008

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Definition and ability of the LNG transfer systems
   4.1 System requirement
   4.2 Overall safety philosophy
   4.3 Overall functional targets and requirements
   4.4 Design principles and risk assessment methodology
   4.5 Design principles
   4.6 Risk assessment
        4.6.1 Hazard identification
        4.6.2 Risk analysis
        4.6.3 Risk assessment
        4.6.4 Acceptance criteria
   4.7 Safety-critical elements
   4.8 Performance standards
   4.9 Risk reduction
5 New design qualification
   5.1 Design qualification
   5.2 Technology assessment
   5.3 Risk assessment: failure mode identification
   5.4 Analysis and testing
   5.5 Reliability analysis
   5.6 Compliance statements
6 Design basis and criteria of a LNG transfer system
   6.1 General
   6.2 Supporting structures and equipment
   6.3 Transfer line diameter and product data
   6.4 Dimensions and clearances
   6.5 Stress analysis
   6.6 Dynamic behaviour (cyclic motions amplitude, speed
        and fatigue)
   6.7 Special loads situations
   6.8 Product swivel joints and structural bearings
   6.9 Connecting/disconnecting device
   6.10 Handling for connection, disconnection, storing
   6.11 Communications, evacuation and rescue
   6.12 Others
7 Safety precautions
   7.1 Introduction
   7.2 Communication
   7.3 Approach and control monitoring berthing and
        connection process
   7.4 Position monitoring, alarm and shut down system
        for the LNG transfer systems
   7.5 ERS system
   7.6 Safety interfaces
   7.7 Control of fluid transfer
8 Connection with the LNGC
   8.1 Two main categories of LNG transfer systems are
        anticipated:
   8.2 Additional requirements for the ship shall address:
   8.3 In order maximise the level of standardisation the
        following guidance shall be observed:
   8.4 Systems and equipment for the position control of the
        LNG carrier during berthing, connection and transfer:
9 Operating and control design
10 Inspection and tests
11 Quality assurance and control
12 Documentation
Annex A (normative) - Procedure for deviation from the full
        standard
Bibliography

This European Standard gives general guidelines for the design of liquefied natural gas (LNG) transfer systems intended for use on offshore transfer facilities or on coastal weather exposed transfer facilities. The transfer facilities considered may be between floating units, or between floating and fixed units. The specific component details of the LNG transfer systems are not covered by this European Standard.Reference is made to EN 1474-1 and EN 1474-2 where appropriate.As a general statement the present standard applies to all transfer systems given in the scope. However, some transfer system designs may require a deviation from the full standard as described in normative Annex A.