ISO 16232-7:2007 PDF

Scope: This part of ISO 16232 defines methods for determining the size and number of contaminant particles, which have been extracted from components and deposited on the surface of a membrane filter, as determined by using either a light optical microscope (LM) or a scanning electron microscope (SEM). The result of this measurement is the particle size distribution on the membrane filter. As the function of parts and components can be impaired by the presence of a single or a few critical particles, a complete analysis of the total membrane filter surface is essential. These analyses can be performed either manually or automatically using Image Analysis (IA) techniques if the appropriate equipment is available.

ISO 16232-7:2007 Referenced Document

ISO 16232-1 Road vehicles - Cleanliness of components of fluid circuits - Part 1: Vocabulary
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 16232-4 Road vehicles - Cleanliness of components of fluid circuits - Part 4: Method of extraction of contaminants by ultrasonic techniques
ISO 16232-5 Road vehicles - Cleanliness of components of fluid circuits - Part 5: Method of extraction of contaminants on functional test bench

2007 ISO 16232-7:2007 Road vehicles - Cleanliness of components of fluid circuits - Part 7: Particle sizing and counting by microscopic analysis