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
1,644 Accredited labs
15 Countries

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COFRAC 1-0646 - Cergy Saint-Christophe, FR
DIN EN ISO 7932 DIN EN ISO 6888-1 ISO 15213-1 DIN ISO 16649-2 DIN EN ISO 6888-3 + 3 more
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COFRAC 1-1904 Nimes, FR
DIN EN ISO 10703 DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 10704 DIN EN ISO 11704 + 3 more
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COFRAC 1-6634 Vezin Le Coquet, FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 6888-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-2363 Boulogne Sur Mer, FR
DIN EN ISO 6888-1 DIN EN ISO 6888-2 DIN ISO 16649-2 NF V08-054 DIN EN ISO 16649-3 + 3 more
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COFRAC 1-7303 Champdeniers, FR
ISO 13320 VDE 414-9-11 NF V08-250 ISO 19343 DIN EN ISO 7899-1 + 3 more
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QWALILAB

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COFRAC 1-2133 La Possession (Ile De La Reunion), FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 21528-2 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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COFRAC 1-1017 Les Herbiers Cedex, FR
DIN EN ISO 7932 DIN EN ISO 6579-1 DIN EN ISO 10272-2 DIN EN ISO 15213-2 BS ISO 15214:1998 + 3 more
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SAS LABCO

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COFRAC 1-6933 Surgères, FR
DIN EN ISO 17604 NF T 90-412 NF V08-401 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-0618 Le Bourget Du Lac Cedex, FR
NF X 31 615 (purge DIN ISO 17289 ISO 5815-1 EN 13087-2 DIN EN ISO 7027-2 + 3 more
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COFRAC 1-0162 Paris, FR
DIN EN ISO 12966-2 DIN EN 12266-2 DIN EN ISO 12966-4 DIN EN 13656 DIN 30660 + 3 more
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COFRAC 1-0161 Cergy, FR
DIN EN ISO 21528-1 DIN 53483-2 DIN EN ISO 21528-2 DIN ISO 11665-4 DIN EN ISO 16649-3 + 3 more
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COFRAC 1-6746 Saint-Herblain, FR
ISO 18787 AM09 based on BS ISO 21527-1: DIN EN ISO 11290-1 NF V04-408 0.95) based on BS ISO 21527-2:2008 + 2 more
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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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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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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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TERANA LOIRE

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COFRAC 1-6124 Montbrison Cedex, FR
DIN EN ISO 7932 DIN EN ISO 6579-1 NF U47-108 DIN EN ISO 15213-2 NF U47-100 + 3 more
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COFRAC 1-6120 Lempdes, FR
NF T 90-412 NF U47-101 DIN EN ISO 7899-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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TREGOBIO

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COFRAC 1-1139 Ploumagoar, FR
DIN EN ISO 7932 DIN 53483-2 DIN EN ISO 6579-1 NF V08-059 DIN EN ISO 10272-2 + 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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