ISO 16232

Technical cleanliness of fluid system components

ISO 16232 specifies methods for assessing particle contamination in hydraulic, fuel, and coolant system components used in road vehicles. This standard defines procedures for extracting, counting, and classifying particles from functional parts like injectors, pumps, valves, and filters. The test is critical for automotive suppliers and OEMs to ensure component reliability and prevent system failures caused by particulate matter. ISO 17025 accreditation for this test guarantees metrological traceability and consistent contamination classification across European supply chains.

What it measures

  • Particle size distribution (ISO 4406 code classification)
  • Total particle count per component
  • Contamination class of hydraulic fluid
  • Fuel system particulate contamination
  • Coolant circuit cleanliness level
🇩🇪 DIN EN ISO 4406 🇬🇧 BS EN ISO 4406 🇫🇷 NF EN ISO 4406 🇮🇹 UNI EN ISO 4406 🇪🇸 UNE EN ISO 4406 🇳🇱 NEN EN ISO 4406
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E. ZOLLER GmbH & Co. KG Einstell- und Messgeräte

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optische 0 mm Werkzeugeinstell- und / Messgeräte verwendete Abkürzungen:
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EDAG Engineering GmbH ATC Fulda

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- Gleichspannung > 0,12 V Vorverstärker > 1,2 V > 12 V > 120 V + 3 more
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ERGO Umweltinstitut

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DIN ISO 10381-5 DIN ISO 18400-102 DIN ISO 18400-104 DIN ISO 18400-105 DIN ISO 18400-203 + 3 more
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Gleichspannung 30 mV / Messgeräte > 0,33 V > 3,3 V > 33 V + 3 more
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Elektro Wilhelm

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DAkkS D-K-20306-01-00 Weinstadt, DE
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Element Metech

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/ Messgeräte 0,001 V > 0,22 V > 2,2 V > 22 V + 3 more
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Element Metech KDK

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Elster

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Endolab Mechanical Engineering

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Endress+Hauser (Deutschland) GmbH+

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DAkkS D-K-19095-01-00 Weil am Rhein, DE
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Entwicklungs- und Prüflabor Holztechnologie

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CDC73 (NM_000384: c.1-c.82) ID152 EN ISO 11925-2 DIN EN 350 + 3 more
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Innen- und Tiefenmaße Konventioneller 0,11 G > 2 G > 5 g + 3 more
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Industries

Automotive component manufacturing Hydraulic systems Fuel injection systems Vehicle manufacturing Industrial fluid power systems

Related Standards

  • ISO 4406 Hydraulic fluid power fluids — Fluids for general applications — Coding of the degree of cleanliness
  • DIN EN ISO 16232 Road vehicles — Cleanliness of components for fluid circuits
  • VDA Band 19.1 Technical cleanliness — Particle contamination of functionally relevant parts

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