PORTABLE CALIBRATION PLATE THAT IS USED TO VERIFY THE CALIBRATION OF TILTMETERS. TRACEABLE GAUGE BLOCKS ARE PLACED UNDER ONE END OF THE PLATE TO ROTATE THE TILTMETER THROUGH A SERIES OF KNOWN ANGLES. THE OUTPUT OF THE TILTMETER AT EACH ANGLE IS RECORDED AND USED TO DETERMINE THE LINEAR SCALE FACTOR AND POLYNOMIAL CALIBRATION CURVE. THE CALIBRATION PLATE IS MADE FROM ALUMINIUM AND MEASURES 830 BY 152 BY 19 CMS AND WEIGHS 2.1 KG

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 9017 DRAWING, MARKING OUT OR MATHEMATICAL CALCULATING INSTRUMENTS (FOR EXAMPLE DRAFTING MACHINES, PANTOGRAPHS, PROTRACTORS, DRAWING SETS, SLIDE RULES, DISC CALCULATORS. INSTRUMENTS FOR MEASURING LENGTH FOR USE IN THE HAND (FOR EXAMPLE MEASURING RODS AND TAPE, MICROMETERS, CALLIPERS), NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER GIR 6 HAS BEEN USED TO CLASSIFY THE PRODUCT TO SUBHBEADING LEVEL 901730 MICROMETERS, CALLIPERS AND GAUGES TARIC CODE 9017300000 ALSO CLASSIFIED IN ACCORDANCE WITH THE HSENS TO HEADING 9017 REFER