What is ISO 21920‑3 – GPS specification operators about?
ISO 21920‑3 is an International Standard that discusses g eometrical product specifications (GPS). Geometrical product specification is the international symbol language used to express tolerances in technical drawings.
ISO 21920‑3 is the third part of the multi-series and specifies the complete specification operator for surface texture by profile methods. The fundamental rules of ISO GPS given in ISO 8015 apply to ISO 21920‑3 and the default decision rules given in ISO 14253-1 apply to the specifications made in accordance with ISO 21920‑3
BS EN ISO 21920-3:2022 Referenced Document
ISO 21920-1 Geometrical product specifications (GPS) — Surface texture: Profile — Part 1: Indication of surface texture
ISO 21920-2 Geometrical product specifications (GPS) — Surface texture: Profile — Part 2: Terms, definitions and surface texture parameters
BS EN ISO 21920-3:2022 history
2022BS EN ISO 21920-3:2022 Geometrical product specifications (GPS). Surface texture: Profile. Specification operators