Rationale:
GRAPHICS REDRAWN. CIRCULARITY REQUIREMENT REMOVED FROM ØA. ØA CHANGED TO A REFERENCE DIMENSION. TABLE 1 REDRAWN TO ADD ‘REF’ TO DIM A, C AND D. NOTE 3 REVISED TO STATE CURRENT QML NOTE. GENERAL UPDATING OF SPECIFICATIONS BEING SPECIFIED HEREIN. CHANGE BAR NOTE REVISED. NOTE 17 ADDED.
