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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DIN EN 12457-2 DIN EN 16175-1 DIN EN ISO 6888-1 DIN EN ISO 10304-1 DIN EN 12880 + 3 more
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ASTM B212-21 ASTM E1019-24 ASTM B527-24 BS EN ISO 3923-1 ASTM B417-22 + 3 more
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ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
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EPA 3005 EPA 6020 DIN EN 12457-2 ISO 5667-5 EPA 3545 + 3 more
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DIN EN 1186-3 DIN EN 17322 EPA 3535 BS EN 15662 EPA 3015 + 3 more
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DIN EN 62368-1: 2016 DIN EN 61326-2-6 DIN EN 61010-2-101 EN IEC 62368-1 IEC 61326-2-6 + 3 more
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ASTM D2896-21 ASTM D445-24 ASTM D5185-18 ASTM D93-25 ASTM D2270-24 + 1 more
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ISO 11423-1 DIN EN 17394-2 ISO 6703-1 EPA 160.1 1971 ISO 14189 + 3 more
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ACCREDIA 00318 Isola del Liri, IT
DIN EN 12457-2 DIN EN ISO 6888-1 AOAC 2012.01 2016 UNI 10802 DIN EN ISO 6888-2 + 3 more
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AOAC 2012.01 2016
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DIN EN 1484 UNI 11757 UNI 10511-1 DIN EN ISO 9308-2 DIN EN ISO 10304-4 + 3 more
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BS EN 15662 AOAC 2012.01 2016 AOAC 2000.16 2004 ISO 1871 ISO 21528-2 + 3 more
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DIN EN 1186-3 DIN EN ISO 6888-1 DIN EN ISO 15587-1 NF EN ISO-15587-2 ISO 4832 + 3 more
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IEC 60730-1: 2013 DIN EN 60730-2-8 IEC 61000-6-1 DIN EN 50131-2-3 DIN EN 60730-2-9 + 3 more
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ISO 37 ISO 28580 ISO 188 ISO 10231 ISO 10191 + 1 more
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UNI 10506 DIN EN ISO 10304-1 ISO 19343 DIN EN 13805 DIN EN ISO 11885 + 1 more
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ACCREDIA 00888 Capriano del Colle, IT
EN 12966: 2014 Section 4.5.4 DIN EN 55025: 2018 DIN EN 60068-2-30 (CISPR 25:2002) Section 6 ISO 11452-4: 2020 + 3 more
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ACCREDIA 02246 Eboli, IT
ISO 18787 DIN EN ISO 6888-1 DIN EN ISO 10304-1 ISO 4832 DIN EN ISO 18593 + 3 more
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DIN EN ISO 6508-1 ASTM E1019-24 ISO 13320 ISO 6892-2 (BS EN ISO 6892-1: 2019) + 3 more
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ACCREDIA 02089 Fino Mornasco, IT
ETSI EN 301 489-6 DIN EN 61326-2-6 IEC 61326-3-1 IEC 61326-3-2 IEC 60669-2-5 + 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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