ISO 16431:2012 PDF

Scope: This International Standard defines methods a) to measure the cleanliness of a fluid in an assembled hydraulic fluid power system, b) to verify a required system cleanliness upon release of the system from the production area, and c) if needed, to clean the system to the required cleanliness level. The clean-up procedure specified in this International Standard is not intended to replace proper system flushing procedures; see ISO 23309 for a system flushing procedure. Components and parts used in such systems should be clean prior to assembly; see ISO 18413 for guidance.

ISO 16431:2012 Referenced Document

ISO 11500 Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle*， 2022-12-21 Update
ISO 21018-1 Hydraulic fluid power - Monitoring the level of particulate contamination of the fluid - Part 1: General principles
ISO 3722 Hydraulic fluid power; Fluid sample containers; Qualifying and controlling cleaning methods
ISO 4021 Hydraulic fluid power; particulate contamination analysis; extraction of fluid samples from lines of an operating system
ISO 4407 Hydraulic fluid power - Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope
ISO 5598 Fluid power systems and components — Vocabulary*， 2020-01-06 Update

2012 ISO 16431:2012 Hydraulic fluid power - System clean-up procedures and verification of cleanliness of assembled systems