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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DAkkS D-ML-22372-01-00 Passau, DE
Großes Blutbild Kleines Blutbild Erythrozyten Hämoglobin Hämatokrit + 3 more
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DAkkS D-K-11200-01-00 Gosheim, DE
Lehrdorne Durchmesser 1 mm Lehrringe Prüfstifte Messschieber für 0 mm + 3 more
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DAkkS D-K-15146-01-01 Schöneck-Kilianstädten, DE
− Parallelendmaße − Durchmesser − Längenmessmittel Railway brake — magnetic track brakes (U − Längenmessgeräte + 3 more
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DAkkS D-ML-17443-01-00 Dessau-Roßlau, DE
WBC (Leukozyten) RBC (Erythrocyten) HGB (Hb) HCT (Hk) PLT (Thrombozyten) + 3 more
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DAkkS D-K-23061-01-01 Lichtenau, DE
Druck 50 mbar Absolutdruck Pabs > 1,3 bar > 2,5 bar > 0,6 bar + 3 more
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SysKal

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DAkkS D-K-21604-01-00 Steinheim an der Murr, DE
Hexagon Metrology Raumdiagonale von GmbH, Wetzlar, D ≤ 1500 mm Polyworks, Software von InnovMetric, Lindau, D PowerINSPECT, Software + 3 more
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DAkkS D-PL-11119-01-00 Leipzig, DE
ISO 5-3 ISO 12647-1 ISO 13655
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DAkkS D-PL-11239-01-05 Chemnitz, DE
ISO 3074 DIN EN ISO 1833-4 DIN EN ISO 1833-5 DIN EN ISO 1833-6 DIN EN ISO 1833-7 + 3 more
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TAK CERT

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DAkkS D-K-20800-01-01 Bonn, DE
− Scheinwerfer-Einstell-Prüfsystem − Abgasmessgeräte für Fremdzündungsmotor − Abgasmessgeräte für Kompressionszündun Railway brake — magnetic track brakes (U nur Vor-Ort-Kalibrierungen + 3 more
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TC Laser

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DAkkS D-PL-22493-01-00 Eppertshausen, DE
DIN EN 50689 VDE 0837-689 DIN 56912 DIN EN 60825-1 VDE 0837-1 + 3 more
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DAkkS D-K-15024-01-01 Heusweiler, DE
- Gleichspannung / Messgeräte 0,1 mV > 220 mV > 2,2 V + 3 more
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DAkkS D-K-15097-01-01 Pinneberg, DE
Elektrische Messgrößen Gleichstrom- und Niederfrequenzmessgröße Railway brake — magnetic track brakes (U − Gleichspannung − Gleichstromstärke + 3 more
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TIRA

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DAkkS D-K-17684-01-00 Schalkau, DE
Kraft (WPM) Kraftmesseinrichtungen von Werkstoffprüfmaschinen Acoustics — tonality assessment (DIN 456 Länge (WPM) + 3 more
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DAkkS D-PL-21837-01-01 Plettenberg, DE
Technical cleanliness — particle contami Technical cleanliness of fluid system co
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TecClean

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DAkkS D-PL-11002-01-01 Friedrichshafen, DE
Technical cleanliness of fluid system co Technical cleanliness — particle contami
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DAkkS D-ML-14063-01-00 München, DE
Staphylokokken Treponema pallidum (Cardiolipin Antikörper) Legionella spp. Salmonellen, Shigellen, Yersinia + 3 more
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DAkkS D-K-22502-01-01 Ilmenau, DE
& 2: 2008 Leuchtdichte L / vom Typ L3 Standard Normfarbwertanteile x , y / LED-basierte Farb- und + 3 more
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DAkkS D-K-18197-01-00 Martinroda, DE
Taupunkttemperatur Railway braking — urban guided transport Widerstandssensor –40 °C bis > 5 °C bis + 3 more
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DAkkS D-PL-22547-01-01 Hemmingen, DE
DIN V ENV 12140 DIN V ENV 13070 ISO 5667-5 ISO 19458
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Teramess

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DAkkS D-K-18666-01-02 Germering, DE
Absolutdruck p 0,015 bar abs > 1,7 bar > 70 bar > 100 bar + 3 more
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DAkkS D-K-18316-01-00 Backnang, DE
Gleichspannung 0 mV Messgeräte 10 mV Wechselspannung 0,22 mV > 220 mV > 2,2 V + 3 more
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DAkkS D-K-22318-01-00 Neu Wulmstorf, DE
Positiver Überdruck p e > 70 bar Überdruck p (ein- oder mehrgängige
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DAkkS D-K-15070-01-01 Kirchzarten, DE
- Gleichspannung / Messgeräte Quellen Hochspannung - Gleichstromstärke + 3 more
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DAkkS D-PL-17169-01-01 Rastatt, DE
DIN EN 60068-2-67 UNE-EN 60068-2-52 IEC/EN 60068-2-38:2009 Part 2-38: ISO 16750-4 DIN EN 60529 + 3 more
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DAkkS D-K-17589-01-01 Steinenbronn, DE
Railway brakes — disc brake pads (UIC 54 Volumendurchfluss bzw. 0,01 m Railway pantographs — requirements for m 39 mL/h + 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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