What is this standard about?
This document defines the quality acceptance criteria of O-rings used in fluid systems, the dimensions of which are standardized in ISO 3601‑1, ISO 16031‑1 and ISO 16031‑2. The ISO 3601 series of standards basically addresses O-rings with moulded cross-sections without a radial joint.
This document also defines and classifies surface imperfections on O-rings and specifies maximum acceptable limits for these imperfections.
This document is also applicable to O-rings to be used in aerospace construction.