UNI EN ISO 1302 : 2004

Foreword
Introduction
1. Scope
2. Normative references
3. Terms and definitions
4. Graphical symbols for the indication of surface texture
5. Composition of complete graphical symbol for surface texture
6. Indication of surface texture parameters
7. Indication of manufacturing method or related information
8. Indication of the surface lay
9. Indication of machining allowance
10. Summarizing of indications of surface texture requirements
    and their values
11. Position on drawings and other technical product documentation
Annex A (normative) Proportions and dimensions of graphical symbols
Annex B (informative) Synoptive tables
Annex C (informative) Examples of indication of surface texture
        requirements
Annex D (informative) Minimum indications for unambiguous control
        of surface functions
Annex E (informative) Surface texture parameter designations
Annex F (informative) Evaluation length, ln
Annex G (informative) Transmission band and sampling length
Annex H (informative) Consequences of new ISO surface texture
        standards
Annex I (informative) Former practice
Annex J (informative) Relation to the GPS matrix model
Bibliography

Specifies the symbols and additional indications of surface texture to be indicated on technical drawings. The basic symbol for surface texture consists of two legs of unequal length inclined at approximately 60 Degrees to the line representing the considered surface. A bar added to the basic symbol means that the removal of material by machining is required. A circle added to the basic symbol means that removal of the material is not permitted.