TS 1503 EN ISO 1660

TS 1503 EN ISO 1660 is a withdrawn standard concerned with the dimensioning and tolerancing of profiles in technical drawings. Its subject is the way a part’s outline or section profile is represented on the drawing and how that profile is controlled geometrically so that design intent can be communicated consistently in manufacture and inspection.

What profile dimensioning and tolerancing means

In technical drawing, a profile is the overall contour of a line or surface, not just a single size value. Profile tolerancing defines an allowed variation zone around the intended shape. This matters for complex outlines, freeform surfaces, and other features whose function depends on form as well as size. Treating dimensioning and tolerancing together helps distinguish the nominal geometry from the permitted deviation in a clear way.

The standard’s general technical framework

The abstract indicates that the standard addresses the presentation of profiles in engineering drawings and the methods used for their dimensioning and tolerancing. In other words, it focuses on how profile-related information is expressed in the drawing language and how geometric control is conveyed for those features. More broadly, the ISO 1660 topic supports a common drawing convention for describing profile features in a way that is understandable across design and production workflows. This specific listing, however, is marked as withdrawn.

• Helps separate the nominal profile from the allowed deviation zone in a drawing.
• Useful where the functional behaviour of a part depends on its contour.
• Supports consistent communication between design, manufacturing, and inspection.
• Clarifies how dimensioning relates to geometric control for profile features.