EN 13645:2001

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Environmental impact
  4.1 General
  4.2 Emission control
  4.3 Boil-off/flash gas management
  4.4 External communication networks
5 Safety plan
  5.1 Purpose
  5.2 Collection of data and information
  5.3 Threshold values
  5.4 Identification of risks
  5.5 Estimation of the consequences of a gas or
      LNG release
6 General safety measures
  6.1 Leaks and spillage protection
  6.2 Overpressure protection
  6.3 Fire protection
  6.4 Confinement
  6.5 Emergency shutdown
  6.6 Commissioning and decommissioning
  6.7 Inspection
  6.8 Personnel
7 Design of vessels
  7.1 General
  7.2 Insulation
  7.3 Foundations
  7.4 Instrumentation
  7.5 Overpressure protection
  7.6 Impounding basin
  7.7 LNG transfer
  7.8 Overflow
  7.9 Distance between vessels
8 Installation design
  8.1 Hazardous areas and restricted access area
  8.2 Unloading and loading areas
  8.3 Circulation and parking
  8.4 Location of facilities
  8.5 Lightning and earthing
Annex A (informative) Schematic description of a process
        for a satellite and fuelling plant
Annex B (informative) Examples of safety scenarios and
        calculations
Annex C (informative) Examples of LNG storage vessels -
        Design concepts

This European Standard specifies requirements for the design and construction of onshore stationary liquefied natural gas (LNG) installations with a total storage capacity between 5 t and 200 t. This standard is not applicable to liquefaction process facilities based on hydrocarbon refrigerants. Larger installations are treated according to EN 1473:1997.If other dangerous substances are present in the facility, the aforementioned storage capacity thresholds may be reduced.NOTEIt is essential that the designer refer to local regulation to determine the new values.The installations to which this standard is applicable include the following:- LNG satellite plants. The LNG may be supplied by road tankers, barge or rail carriers. After storage, LNG is vaporized and sent out to consumers;- LNG gas fuelling stations for vehicles.The installation is limited from the gas inlet or the loading LNG area to the gas outlet or the unloading LNG area. Filling systems are not covered here.For the purposes of clause 4 «Environment Impact» and clause 5 «Safety Plan», this standard applies where LNG storage capacity exceeds the threshold specified in the local regulation. If this value is not available, a threshold of 50 t is recommended.It is recalled that, in any case, local regulations prevail.For the purposes of clause 4 «Environment Impact» and clause 5 «Safety Plan», this standard applies where LNG storage capacity exceeds the threshold specified in the local regulation. If this value is not available, a threshold of 50 t is recommended.It is recalled that, in any case, local regulations prevail.