IS 11158-1984

标准号：IS 11158-1984
发布日期：1985/5/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This International Standard specifies the recommended propor-tions and lays down the dimensions for the symbols used to in-dicate geometrical toterancing on technical drawings.The symbols and their lettering may be hand-written (using a rule for drawing the frames) or executed by means of other ap-propriate methods (for example, stencils, transfers, mechanical drawing, etc.).The dimensions of the symbols are based on the standard heights of lettering given in ISO 3098/1.