Technical drawings; Geometrical tolerancing; Positional tolerancing

This specification establishes the fundamental principles and definitions for location tolerances within the field of engineering drawing. It provides a standardized framework for indicating the permissible variation in the position of features on technical drawings, ensuring clear communication between designers and manufacturers. The document outlines various types of location tolerances, including parallelism, perpendicularity, angularity, position, concentricity, and symmetry. By defining these tolerances, it facilitates the interchangeability of parts and ensures that components fit together as intended during assembly. The standard focuses on geometric properties rather than dimensional sizes, allowing for more flexible and accurate manufacturing processes. It serves as a reference for interpreting and applying location control requirements in mechanical design. The guidelines presented enable engineers to specify exact placement requirements without relying solely on tolerance stacks. Adherence to these principles helps maintain consistency across different industries and geographical regions.