ISO 16232-4:2007 PDF

Scope: This part of ISO 16232 describes the principles of extraction of contaminants from a component either by immersion in an ultrasonic bath or by applying ultrasonic vibrations directly via sonotrodes. It is preferably applied to small and medium sized components of various geometry of which both internal and/or external surfaces have to be examined (e.g. joint seals, gears, etc). It is also applicable to small parts to be analysed in batches. This method can be used on its own or in association with other methods of extraction described in the ISO 16232 series. Unless otherwise specified, this part of ISO 16232 deals with particulate contamination only. It does not, therefore, cover appearance defects or contamination by liquid or gaseous materials. It covers the amount and the nature of residual particles resulting from manufacturing processes and from the environment.

ISO 16232-4:2007 Referenced Document

ISO 16232-1 Road vehicles - Cleanliness of components of fluid circuits - Part 1: Vocabulary
ISO 16232-10:2007 Road vehicles - Cleanliness of components of fluid circuits - Part 10: Expression of results
ISO 16232-2 Road vehicles - Cleanliness of components of fluid circuits - Part 2: Method of extraction of contaminants by agitation
ISO 16232-3 Road vehicles - Cleanliness of components of fluid circuits - Part 3: Method of extraction of contaminants by pressure rinsing
ISO 16232-5 Road vehicles - Cleanliness of components of fluid circuits - Part 5: Method of extraction of contaminants on functional test bench
ISO 16232-6 Road vehicles - Cleanliness of components of fluid circuits - Part 6: Particle mass determination by gravimetric analysis
ISO 16232-7 Road vehicles - Cleanliness of components of fluid circuits - Part 7: Particle sizing and counting by microscopic analysis
ISO 16232-8 Road vehicles - Cleanliness of components of fluid circuits - Part 8: Particle nature determination by microscopic analysis
ISO 16232-9 Road vehicles - Cleanliness of components of fluid circuits - Part 9: Particle sizing and counting by automatic light extinction particle counter

2007 ISO 16232-4:2007 Road vehicles - Cleanliness of components of fluid circuits - Part 4: Method of extraction of contaminants by ultrasonic techniques