BS EN ISO 14405-1:2025

This document specifies requirements for indicating linear sizes.

This document establishes the default specification operator (see ISO 17450‑2) and defines a special specification operator for linear sizes.

This document is applicable to the following features of linear size (see ISO 17450‑1):

• cylinders;

• spheres;

• two parallel opposite planes.

This document provides a set of tools to express several types of linear size characteristics. It does not present any information on the relationship between a function or a use and a linear size characteristic.