TS EN ISO 15785

TS EN ISO 15785 is the standard for symbolic presentation and indication of adhesive, fold and pressed joints in technical drawings. It addresses how these joints are represented on drawings so that the intended joining method can be recognized at a glance and interpreted consistently by design, manufacturing and inspection teams.

How joint notation works in technical drawings

Symbolic presentation is a compact drawing language: instead of showing every construction detail, a standardised symbol conveys the essential information. Adhesive, fold and pressed joints are common in sheet-metal, profile and surface-joining applications, but they differ in how the connection is created and how it behaves in service. In general technical terms, adhesive joints rely on an adhesive bond, while fold and pressed joints depend on formed or mechanically compressed features. Clear notation matters because it affects assembly interpretation, quality control and communication across disciplines.

What this standard covers

The scope of this standard is the rule set for the symbolic presentation and indication of these specific joint types in technical drawings. It is about how the joints are shown and identified on the drawing, not about other joining methods or a full manufacturing specification. In practice, it is used together with broader drawing standards to keep graphical communication consistent.

• Helps distinguish adhesive, fold and pressed joints on drawings.
• Supports consistent interpretation across design and production teams.
• Standardises symbols, notation and identification on technical drawings.
• Reduces ambiguity in communication between engineering functions.