AUTOCOLLIMATOR. AN OPTICAL INSTRUMENT FOR NON-CONTACT MEASURING OF ANGLES, STRAIGHTNESS, FLATNESS, SQUARENESS AND PARALLELISM. MEASUREMENT OF THE TWO AXES IS MADE USING A COMBINATION OF THE INSTRUMENTS TWO AXES GRATICULE AND SINGLE MICROMETER AND IS PROVIDED AS STANDARD WITH A DARK FIELD GRATICULE. WITHOUT MOUNTING FIXTURES. ACCURACY: 1 SEC. RANGE OF MEASUREMENT +/-900 SEC (+/-1500 SEC EXT). DIRECT READING TO 0.5 SEC.

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) MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS GIR 3C HAS BEEN USED AS IT IS CONSIDERED THERE IS NO ESSENTIAL CHARACTER AND THEREFORE HAS BEEN CLASSIFIED TO LAST IN NUMERICAL ORDER WITHIN THE TARIFF. GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL (9031 80) OTHER INSTRUMENTS, APPLIANCES AND MACHINES CN CODE ( 9031 80 20) - FOR MEASURING OR CHECKING GEOMETRICAL QUANTITIES HSEN HEADING 9031 NOTE 1 (A) NOTE 18 REFERS, ETC.