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
1,865 Accredited labs
17 Countries

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COFRAC 1-0889 Fontaine, FR
DIN EN ISO 21528-1 NF V08-401 DIN EN ISO 21528-2 DIN EN ISO 6888-1 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-7288 La Fleche, FR
DIN EN ISO 21528-1 DIN EN ISO 21528-2 DIN EN ISO 6888-1 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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DAkkS D-K-17733-01-01 Hornberg, DE
Absolutdruck Pabs > 0,05 bar Negativer und positiver Überdruck p (ein- oder mehrgängige + 1 more
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SKZ - Testing

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DAkkS D-PL-19033-01-01 Würzburg, DE
Bauart wie GR 1482 DIN ISO 48-4 DIN ISO 7619-2 DIN EN ISO 868 DIN EN ISO 2039-1 + 3 more
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DAkkS D-PL-15110-01-02 Hartmannsdorf, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 DIN EN IEC 61000 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 + 3 more
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DAkkS D-PL-18176-01-02 Berlin, DE
DIN EN ISO 11737-2 DIN 58953-6 DIN 1946-4 DIN EN 13959 DIN EN ISO 8536-4 + 3 more
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COFRAC 1-0869 Paris, FR
NF X 43-050 NF X 43-269 NF X 43-269 – Annexe K NF X43-050 (parties utiles de la DIN ISO 16000-3 + 3 more
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DAkkS D-PL-12074-01-01 Niestetal, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 + 3 more
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UKAS 31703 Eastbourne, GB
Surveying) based on HSG 248
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COFRAC 1-0824 Lisses, FR
DIN EN ISO 1833-13 DIN EN ISO 1833-14 DIN EN ISO 1833-16 DIN EN ISO 1833-17 DIN EN ISO 1833-18 + 3 more
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COFRAC 1-6879 Vitry Sur Seine, FR
ISO 13737 NF ISO 22286 ASTM D 2137 NF F19-503 NF T60-190 + 3 more
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ACCREDIA 00612 Rivalta Scrivia, IT
DIN EN 1097-7 DIN EN 1097-6 DIN EN 933-10 DIN EN 933-8 DIN EN 1427 + 3 more
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COFRAC 1-0062 Les Ulis, FR
DIN EN ISO 10545-3 DIN EN 997 DIN EN ISO 10545-4 DIN EN ISO 10545-14 DIN EN ISO 10545-6 + 3 more
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UKAS 1089 Burton-on-Trent, GB
(HSG 248) – 2021 SCI/ASB/003 based on HSG 248 (PCM) based on HSG 248 SCI/ASB/001 based on HSG 248
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UKAS 0148 Burton-upon-Trent, GB
(HSG 264, 2012) 5 of HSG 227 (2004)
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COFRAC 1-7125 Guyancourt, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 DIN EN ISO 21877 NF X 43-317 DIN EN 14181 + 3 more
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COFRAC 1-2383 Hombourg, FR
ISO 11737-3 DIN EN ISO 11737-2 NF EN 13824 (norme BS EN ISO 11737-1:2018
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DAkkS D-K-20497-01-01 Twist, DE
- Gleichspannung Messgeräte 1 mV > 330 mV 3,3 V Messgeräte 0,33 V + 3 more
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DAkkS D-K-17475-01-00 Hilden, DE
Vibration measuring instruments — test m Vibration measurements near traffic — me Härteprüfmaschinen Acoustics — tonality assessment (DIN 456 Noise measurement on railway vehicles — + 3 more
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STEARO

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COFRAC 1-7174 Velaux, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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ACCREDIA 01450 Rivarolo Canavese, IT
DIN EN 12457-2 DIN EN ISO 10304-1 DIN EN 14789 DIN EN 13126-19 ISO 23695 + 3 more
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ACCREDIA 01157 Pisticci, IT
DIN 3388-4 EPA 6020 DIN EN 12457-2 EPA 3545 BS EN 15662 + 3 more
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STUDIO DELTA

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ACCREDIA 00426 Norbello, IT
ISO 13720 ISO 17604 DIN EN ISO 6888-1 ISO 19250 DIN EN ISO 6888-2 + 3 more
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STUDIO F2 SRL

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ACCREDIA 00638 Castellucchio, IT
ISO 17604 ISO 6888-2 ISO 18787 ISO 19250 AOAC 2012.01 2016 + 3 more
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SYNLAB GHANA

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DAkkS D-ML-20424-01-00 Accra, DE
Alpha-Fetoprotein Beta Human Chorionic Gonadotrophin (BHCG), quantitative CA 125 CEA + 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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