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
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DAkkS D-PL-19253-01-00 Hamburg, DE
DIN 52186 ISO 21527-1 DIN EN ISO 527-3 IEC 61924-2 DIN EN 62233 + 3 more
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ENAC LE2598 Barcelona, ES
Technical cleanliness of fluid system co
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ACCREDIA 00619 Lanciano, IT
DIN EN 12457-2 DIN EN ISO 6888-1 DIN EN ISO 12966-2 EPA 3630 DIN 51750-3 + 3 more
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BIOCHEMIE LAB

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ACCREDIA 00176 Campi Bisenzio, IT
DIN EN 15634-1 UNI 10507 ISO 19250 DIN EN ISO 7393-2 DIN EN ISO 14402 + 3 more
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COFRAC 1-1674 Mauguio, FR
NF T 90-412 DIN EN ISO 6888-1 DIN EN ISO 7899-1 DIN EN ISO 10705-2 DIN EN ISO 6888-2 + 3 more
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BIOKIM srl

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ACCREDIA 00740 Modena, IT
ISO 18787 DIN EN ISO 6888-1 UNI 10590 DIN EN 61442 DIN EN ISO 15587-1 + 3 more
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ACCREDIA 00564 Torino, IT
ISO 6888-1 ISO 14189 ISO 11731 ISO 4832 ISO 4833-1 + 3 more
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ACCREDIA 00786 Parabita, IT
ISO 4833-1 ISO 16649-2 ISO 18593 DIN EN ISO 6888-1 ISO 4833-2 + 3 more
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BIOMIL

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ACCREDIA 00714 Livorno, IT
ISO 18787 DIN EN ISO 6888-1 AOAC 2012.01 2016 ISO 14189 ISO 11731 + 3 more
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ACCREDIA 00518 Guarene, IT
0,2 0,003 bis 0,006 (HLA DQ8 (HLA DQB*03:02) ISO 18787 BS EN 15662 DIN EN ISO 6888-1 + 3 more
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ACCREDIA 00711 San Giovanni Rotondo, IT
ISO 13720 ISO 17604 ISO 6888-2 ISO 18787 ISO 11731 + 3 more
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ACCREDIA 00674 Vasto, IT
DIN EN ISO 20595 ISO 6888-1 DIN EN 12457-2 DIN EN ISO 10304-1 ISO 15587-1 + 3 more
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BIOTECNAL

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ENAC LE582 Sant Quirze del Valles, ES
UNE-EN ISO 6579-1 UNE-EN ISO 6222 UNE-EN 26777 UNE-EN ISO 7027-1 en 31-7-79 (BOE 29-08-79) + 3 more
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BIOXAL

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COFRAC 1-7423 Chalon-Sur-Saône, FR
DIN EN 17387 DIN EN 13697
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DAkkS D-PL-19572-01-01 Bochum, DE
DIN EN ISO 6246 DIN 53160-1 DIN EN ISO 22854 (LBLS) (OMIM 611105) (c.228- DIN EN 13016-1 + 3 more
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UKAS 0578 Garston, GB
BS EN ISO 10140-2:2021 BS EN ISO 10140-3:2021 BS EN ISO 717-2:2020 ISO 7171 BS EN ISO140-3:1995 (withdrawn) + 3 more
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ACCREDIA 00662 Palermo, IT
DIN EN ISO 7730 ISO 5667-5 ISO 17604 DIN EN ISO 6888-1 ISO 8573-4 + 3 more
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UKAS 0823 Reykjavik 104, IS
Nominal value TEMPERATURE See Notes 1 to 3 TORQUE Case Manager: BC4 + 1 more
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ENAC LE378 Sant Cugat del Vallès, ES
UNE-EN 13284-2 UNE-EN 15259 UNE-EN 16911-2 UNE-EN 13284-1 UNE EN 1911 + 3 more
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UKAS 0757 Dunfermline, GB
(HSG 248) – 2021 14B based on HSG 248 DIN EN 12021 14A based on HSG 248 (PCM) based on HSG 248 + 2 more
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Balis Micro

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RvA L581 Boven-Leeuwen, NL
AM09 based on BS ISO 21527-1: DIN EN ISO 21528-2 DIN EN ISO 4833-2 BS ISO 15214:1998 0.95) based on BS ISO 21527-2:2008
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DAkkS D-K-15206-01-00 Oberdischingen, DE
Sound intensity — scanning method (ISO 9 Messgeräte für die Härteskale Shore A* Analoge Anzeige Railway freight wagon brake system requi + 3 more
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DAkkS D-K-20341-02-00 Bad Nenndorf, DE
Temperaturanzeigegeräte –100 °C bis - Direktanzeigende Thermometer - Thermopaare, Thermoelemente verwendete Abkürzungen:
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DAkkS D-ML-19082-01-00 Oberschleißheim, DE
Salmonella spp. Antikörper) Treponema pallidum (Lues) Thrombozytäre Antikörper dysenteriae), Vibrio cholerae + 3 more
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DAkkS D-ML-13090-01-00 Hamburg, DE
Echinococcus granulosus Echinococcus multilocularis Paragonimus uterobilateralis Ascaris lumbricoides (IgG) Brucella spp. (IgG, IgM) + 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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