A MECHANICAL CALIPER USED DOWNHOLE TO MEASURE THE DIAMETER OF A WELLBORE/PIPELINE TO CHECK FOR DEFORMATION OR ANOMALIES. THE TOOL HAS 15 FEELERS TRIGGERED BY UPWARD MOVEMENT. FEELER DATA IS SCRIBED ON CHROME STEEL CHART WHICH IS HOUSED INSIDE THE TOOL. THE CHART IS DRIVEN BY DRIVE WHEEL. THE TOOL IS RUN ON STANDARD SLICKLINE AND NO SPECIAL DOWNHOLE OR SURFACE DATA IS REQUIRED TO RUN THE CALIPER. THE TOOL HAS HIGH TEMPERATURE AND PRESSURE LIMITS (600 DEGF AND 20,000 PSI) AND CAN BE USED IN HIGH TEMPERATURE, HIGH PRESSURE ENVIRONMENTS.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 9031 FOR MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 9031 80 FOR OTHER INSTRUMENTS, APPLIANCES AND MACHINES CN CODE 903180 91 FOR OTHER THAN ELECTRONIC: FOR MEASURING OR CHECKING GEOMETRICAL QUANTITIES TARIC 90318091 90 FOR OTHER THAN FOR USE IN CIVIL AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH:- COMBINED NOMENCLATURE EXPLANATORY NOTE (CNEN) TO 9031 80 91