Plates to be joined by butt welding shall be matched accurately and retained in position during the welding
operation. Misalignment in completed vertical joints for plates greater than 16 mm (5/8 in.) thick shall not exceed 10 %
of the plate thickness or 3 mm (1/8 in.), whichever is less; misalignment for plates less than or equal to 16 mm (5/8 in.)
thick shall not exceed 1.5 mm (1/16 in.