ISO 128-43:2015 PDF Download

ISO 128-43:2015 is a standard that outlines the principles of presentation for technical product documentation, specifically focusing on projection methods in building drawings. The standard defines two main projection methods: direct orthographic projection and mirrored orthographic projection.

Direct orthographic projection involves projecting an object onto a plane by drawing lines perpendicular to the plane from various points on the object. This results in a two-dimensional representation of the object, showing all its visible surfaces without any distortions.

Mirrored orthographic projection, on the other hand, uses a mirror to reflect the object onto a plane. This method is particularly useful when the object being represented has symmetry or when projecting complex geometrical shapes.

In addition to describing these projection methods, ISO 128-43:2015 also provides the symbols and conventions to be used in building drawings. These symbols help to standardize the representation of objects and ensure consistency across different drawings and projects.