TS 88-34 ISO 128-34

TS 88-34 ISO 128-34 is a standard for mechanical engineering drawings that adds presentation rules for views within the ISO 128 series. It addresses how additional views are arranged and related to the subsequent orthographic projection methods identified in ISO 5456-2. In technical drawing, the way views are chosen and positioned is essential for communicating a part’s shape, orientation, and functional details without ambiguity.

View arrangement and drawing readability in mechanical drafting

In general technical terms, a view is a two-dimensional projection of a three-dimensional object. In mechanical engineering, front, top, side, and, where needed, auxiliary views support dimensioning, tolerance interpretation, and manufacturing understanding. The subject of this standard is the presentation of those views: how they are arranged on the drawing, how their relationship is read, and how additional views complement the basic view layout.

Where this part sits in the ISO 128 family

The ISO 128 series organizes different aspects of technical drawing presentation in a structured way. This part is intended to be read together with ISO 128-30 and is based on projection methods applicable to mechanical engineering drawings. That helps keep the drawing language consistent across different part geometries and viewing directions, improving legibility even when the geometry is complex.

• Used together with the view presentation rules in ISO 128-30.
• Linked to the subsequent orthographic projection methods stated in ISO 5456-2.
• Covers rules for presenting views in mechanical engineering drawings.
• Supports clearer communication of shape, orientation, and technical detail.