Dæk og maskinrum
No entry except autho person
Purifiers room keep Door close
Secure painter strong point
Fire loop isolation instruct.
Ventilation used prior entry
Person enter..must comply
Adjust pressure ...in use
Gas flood system protected are
CO2 protected area instruct.
Ice and snow accretion must be
All visitors..at security offi
All visitors please announce a
This hatch must be kept closed
This door must be kept closed
In case of security alert this
Danger refrigerant gas sign
Radio antennas to be earthed
