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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UNI 10780 DIN EN ISO 10523 DIN EN ISO 54321 ISO 10390 DIN EN ISO 21149 + 3 more
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BS EN 15662 AOAC 2012.01 2016 DIN 51750-3 DIN EN ISO 10304-1 DIN EN ISO 6888-2 + 3 more
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UNI 10780 ISO 15705 DIN EN 16173 ISO 23695
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ENAC LE2121 Llinars del Valles, ES
ISO 9994 ISO 22702 ASTM F400 ASTM F2201
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DIN EN 50173-1 DIN EN 50173-2 DIN EN 50173-3 DIN EN 50173-4 DIN EN 50173-5 + 3 more
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COFRAC 1-0002 Elancourt, FR
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DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 NF X43-551 IS EN 1948-1:2006 2006 DIN EN 14789 + 3 more
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COFRAC 1-6437 Évreux Cedex, FR
NF T 90-412 DIN EN ISO 7899-1 NF U47-101 DIN ISO 11465 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-5684 Saint-Contest, FR
DIN EN ISO 17294-2 DIN 51750-3 DIN EN ISO 14403-2 NF EN ISO 54321 et NF T 90-412 + 3 more
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COFRAC 1-6185 Saint-Lô Cedex, FR
DIN ISO 17289 NF X 31-615 ISO 15648 ISO BS EN 3727-1:2002 ASTM D 7238 + 3 more
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GIUSEPPE CITTERIO SALUMIFICIO SpA LABORATORIO CHIMICO E MICROBIOLOGICO

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ISO 6888-1 AOAC 2012.01 2016 DIN EN ISO 10272-1 ISO 4832 ISO 4833-1 + 3 more
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DIN EN 12469 BS 5726-1 DIN 1946-4 DIN EN 12599 DIN 12980 + 1 more
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RvA C480 Ljubljana, NL
IEC 17025
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DIN 51757 DIN EN ISO 12185 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 237 + 3 more
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Koordinatenmesstechnik Lasertracker* 0,5 m 1) In den CMC sind die erweiterten Messu Bügelmessschrauben* 0 mm + 3 more
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- Gleichspannung Messgeräte > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
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GMP - Geotechnik GmbH & Co. KG, beratende Ingenieure und Geologen

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DAkkS D-PL-14479-01-00 Würzburg, DE
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ENAC LC10.194 Palau-solità i Plegamans, ES
EURAMET cg-18 CEM cg-19 UNE-EN ISO 14644-3 UNE-EN ISO 14644-1
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GPR Gesundheits- und Pflegezentrum Rüsselsheim gemeinnützige GmbH Institut für Laboratoriumsmedizin

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GPÜ Gesellschaft für Prüfmittelüberwachung

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DAkkS D-K-18186-01-00 Bitterfeld-Wolfen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Innen- und Tiefenmaße Wägewert/ + 3 more
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GRAND EST ANALYSES

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COFRAC 1-6977 Wintzenheim, FR
NF X 43-269 – Annexe K NF X 43-050 NF X43-050 (parties utiles de la
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ACCREDIA 00603 Frosinone, IT
EPA 3005 DIN EN 12457-2 EPA 6020 EPA 3015 UNI 10802 + 3 more
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GRAVICAL

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DAkkS D-K-21136-01-00 Damme, DE
Innen- und Tiefenmaße Konventioneller Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) + 1 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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