TS 2040 EN ISO 1302

TS 2040 EN ISO 1302 is a withdrawn standard dealing with how surface texture is indicated in technical product documentation. Its focus is the consistent use of graphical symbols and written indications in drawings and related engineering documents to describe the surface condition of a part. Because surface texture can affect how a component fits, wears, seals, or finishes, clear notation is an important part of technical communication.

The role of surface texture notation

In general technical terms, surface texture covers features such as roughness, waviness, and lay on a manufactured surface. These characteristics can influence friction, sealing, coating adhesion, assembly behavior, and appearance. The ISO 1302 family provides a notation system for expressing this information on documents in a consistent way. In other words, the standard is about how surface requirements are shown, not about how the surface is manufactured.

How the documentation language is used

According to the scope, the standard applies to technical product documentation such as drawings, specifications, contracts, and reports. Using symbols together with textual indications helps reduce ambiguity and makes surface requirements easier to read across different engineering workflows. In practice, surface texture indications are often interpreted alongside related geometric specification and measurement rules, so the notation fits into a broader product definition system rather than standing alone.

• The subject is the indication of surface texture in documents, not the production method itself.
• It covers rules for graphical symbols and textual indications.
• It is used in engineering documents such as drawings, specifications, contracts, and reports.
• It provides a common language for roughness, waviness, and lay as surface-condition concepts.
• This entry describes TS 2040 EN ISO 1302; the document was withdrawn in 2022.