Standards reference
ISO 1101 — Geometrical Tolerancing
DraftFit reference page for ISO 1101 geometrical tolerancing concepts, symbols and interpretation.
Reference
ISO 1101:2017
ISO 1101:2017 remains the current published edition on the ISO catalogue. Check the edition specified on the drawing.
Role in GPS
ISO 1101 defines the symbol language and interpretation rules for geometrical specification of workpieces, covering form, orientation, location and run-out tolerances.
Use with related standards
GD&T/GPS requirements rarely live in one document alone. Datum systems, modifiers, drawing practices and verification can involve additional standards, so the drawing and project specification should control the complete interpretation.
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GD&T Reference →This page is an orientation aid, not a reproduction of the standard. Obtain and use the controlled standard required by your project.