A PORTABLE , ELECTRONIC GEOPHYSICAL INSTRUMENT. A SEISMIC ENERGY SOURCE FOR USE IN A MARINE ENVIRONMENT. THE FUNCTION OF THE DEVICE IS TO CREATE A SEISMIC SHOCK WAVE IN THE MARINE ENVIRONMENT WHICH WILL TRAVEL THROUGH THE WATER AND ONWARD THROUGH THE UNDERLYING GEOLOGY TO REFLECT AND REFRACT OFF GEOLOGICAL STRATA. THE PRODUCT IS PREDOMINANTLY USED AS A TOOL FOR MAPPING RELATIVELY SHALLOW STRUCTURES WITHIN THE EARTHS CRUST AND IS USED FOR CIVIL ENGINEERING APPLICATIONS FOR MINERAL EXPLORATION AND FOR SHALLOW GAS HAZZARD DETECTION. THE SYSTEM CONSISTS OF THE SOURCE VEHICLE , THE SEISMIC TRANSCEIVER, POWER SUPPLY AND HYDROPHONE STREAMER CABLE.

THE PRODUCT HAS BEEN CLASSIFIED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETIVE RULES (GIRS) GIR 1 HAS BEEN USED TO CLASSIFY THE PRODUCT BY THE TERMS OF HEADING 9015 SURVEYING (INCLUDING PHOTOGRAMMETRICAL SURVEYING) HYDROGRAPHIC, OCEANOGRAPHIC, HYDROLOGICAL, METEOROLOGICAL OR GEOPHYSICAL INSTRUMENTS AND APPLIANCES, EXCLUDING COMPASSES; RANGEFINDERS GIR 6 HAS BEEN USED TO CLASSIFY THE PRODUCT TO SUBHEADING LEVEL 901580 OTHER INSTRUMENTS AND APPLIANCES CN CODE 90158011 ELECTRONIC METEOROLGICAL, HYDROLOGICAL AND GEOPHYSICAL INSTRUMENTS AND APPARATUS TARIC CODE 9015801190 OTHER THAN METEOROLOGICAL INSTRUMENTS FOR USE IN CIVIL AIRCRAFT. ALSO CLASSIFIED IN ACCORDANCE WITH HSEN NOTE (VI) TO CHAPTER 9015 GEOPHYSICAL INSTRUMENTS NOTE (I) MENTIONS SEISMOMETERS