(Rev.1) ISO Standard for General Tolerance of Dimension Inspection
ISO 2768-1, General Tolerances - Part 1: Tolerance for linear and angular dimensions without individual tolerance indications ISO 2768-2, General Tolerances - Part 2: Geometrical tolerances for features without individual tolerance indications ISO 13920, Welding - General tolerance for welded constructions - Dimensions for lengths and angles - Shape and position Rev.1 (Nov.10, 2021) The tolerance class shall be stated on the drawing or the contract document. If the tolerance class is not specified, the following class shall be applied as per the common practice. ISO 2768-1, Tolerance Class: m ISO 2768-2, Tolerance Class: K ISO 13920, Tolerance Class: B & F The QC inspector cannot decide the tolerance class for the acceptance criteria. Prior to the dimension inspection, the QC inspector and the buyer's engineer shall discuss the applicable tolerance class. If the discussion is not possible due to the several reason, the applicable tolerance class shall be stated in the i