TS 5319

TS 5319 is a standard dealing with the hatch patterns and colouring used to identify material types in engineering drawings. Its focus is the drawing language itself: how different materials are distinguished visually, especially in section views and explanatory details, so that the structure of a part can be read quickly and consistently. It does not define the material’s physical properties; it addresses the graphical conventions used to indicate them.

Why hatching and colour matter in drawing practice

In general technical practice, section hatching is the line pattern used to show a cut surface in a drawing. When different materials are represented by different hatch arrangements, ambiguity is reduced in assembly drawings, detail sheets and reference documentation. Colour can also serve as an additional visual cue in some drawing systems, helping separate material categories or descriptive layers, although colour alone does not normally define a material’s engineering characteristics.

What this standard covers in practical terms

Based on the supplied scope, TS 5319 covers the hatchings and colouring principles used to describe material types in engineering drawings. The emphasis is therefore on the visual identification of materials on the drawing, not on material selection, manufacturing processes or mechanical performance. The standard provides a common framework for using these representation methods in a clear and consistent way.

• Hatch arrangements used to distinguish material types in section views
• Colour-based principles used when marking materials in drawings
• A consistent visual language for readable engineering documentation

TS 5319 is a withdrawn standard, but it remains relevant for understanding older drawing archives, historical drafting practice and material-identification conventions. It is especially useful for readers who need to interpret how symbols, hatching and colour were combined in engineering documentation.