ISO 4406 & ISO 4407

ISO 4406 & 4407 are standards published by the International Organization for Standardization (ISO) which relate to the contamination of hydraulic fluids by solid particulates. ISO 4406 defines the method used for coding the contamination and specifies that the sample must be analyzed according to ISO 4407. ISO 4407 outlines the method used to prepare samples, and the procedure used to determine the level of contamination. The method required is particulate counting by optical microscopy and the use of a motorized stage is highly recommended. In these standards, the differentiation between “regular” particulates and fibres is required.

Clemex PSFilter is a system fully compliant with ISO 4406 & 4407. Users can choose to execute the included test methods and reports to match the standard exactly or can modify it to extract additional information if they so desire. Whatever method is chosen, the system is easy to use and the learning curve is not very steep.

For more information on the ISO 4406/4407 compliant instrument, Clemex PSFilter, visit the product page, brochure or contact a sales representative.