ISO/TC 131/SC 6/WG 3 - Component and system cleanliness

ISO 18413 specifies the content of an inspection document that includes both the cleanliness requirement for the specified part or component and the inspection method to be used for evaluating its cleanliness level. The cleanliness requirement and inspection method shall be established and agreed upon by the parties involved. ISO 18413 is applicable to the wetted surfaces of any fluid power system part or component. It does not cover appearance defects and contamination by liquid or gaseous materials. This International Standard does not address safety problems that may arise from hazardous materials, operations and equipment associated with its use. The user of ISO 18413 is responsible for establishing appropriate safety and health practices and determining the applicability of regulatory limitations prior to use.

ISO/TS 16431 defines a procedure for measuring and verifying a desired cleanliness level in an assembled hydraulic fluid power system upon its release from the production area.