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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DAkkS D-ML-13400-01-00 Groß Grönau, DE
AMA M2-3E IgG Anti-CCP (Cyclische Citrullin Antikörper) IgG Anti-dsDNS-NCX IgG Anti- Transglutaminase + 3 more
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DAkkS D-K-15098-01-00 Leonberg, DE
Koordinatenmessgeräte geräte mit einem Messprojektoren einer Raumdiagonalen Messmikroskope ≤ 600 mm verwendete Abkürzungen:
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DAkkS D-K-15077-01-00 Aschaffenburg, DE
Parallelendmaße 0,5 mm bis DIN EN ISO 3650:1999 Parallelendmaße aus 0,5 mm bis Keramik oder Wolframkarbid nach + 3 more
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DAkkS D-K-22877-01-01 Eschweiler, DE
(ein- und mehrgängige zylindrische Außen- und geradlinigen Flanken und symmetrischem Profil sowie positiven Flankenwinkeln) + 3 more
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UKAS 23015 Mansfield, GB
and Appendix 3 of HSG 227 (2004)) Appendix 5 of HSG 227 (2004))
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UKAS 7736 Chelmsford, GB
(HSG 248) – 2021 (PCM) based on HSG 248 SAS 02 based on HSG 248
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Kovia

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UKAS 9942 Royal William Yard, GB
Appendix 5 of HSG 227 (2004)) HSG 227 (2004) HSG 264 (2012) and Appendix 3 of
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DAkkS D-ML-13173-01-00 Bad Oeynhausen, DE
Thrombozytenfunktion Amiodaron/Desethylamiodaron Cotinin Cyclosporin A Everolimus + 3 more
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DAkkS D-ML-21357-01-00 Heppenheim, DE
Albumin Alkohol ALP Anti-Faktor Xa (Fragmin) AT3 + 3 more
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DAkkS D-K-15082-01-00 Hamburg, DE
Durchfluss von Gasen 17 mL/s transferstandards Strömungswiderstand 5 mL/min 15,0 mL/min Laminar Flow Elemente 17 mL/min + 3 more
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DAkkS D-K-17059-02-01 Dresden, DE
Messschieber für Außen-, 0 mm Innen- und Tiefenmaße > 300 mm Tiefenmessschieber 0 mm Höhenmessschieber 0 mm + 3 more
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ACCREDIA 00520 Vergiate, IT
ISO 6888-1 ISO 18787 ISO 19250 AOAC 2012.01 2016 ISO 14698-1 + 3 more
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ACCREDIA 00452 Moncalieri, IT
UNI 10678 ISO 11731 EPA 200.9 2001 EPA 289.1 1974 BS EN 15662 + 3 more
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ACCREDIA 01781 Valmontone, IT
DIN EN ISO 17294-2 DIN EN 13657 DIN EN 12457-2 UNI 10802
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L.M.P. Srl

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ACCREDIA 01574 Guidonia Montecelio, IT
IEC 62697-1 IEC 60814 ASTM D6304-20 DIN EN 12766-1 DIN EN 61198 + 3 more
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COFRAC 1-6952 Strasbourg, FR
ISO 19343 DIN EN ISO 6888-2 DIN ISO 16649-2 NF V08-054 DIN EN ISO 19020 + 3 more
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L3A LAB

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COFRAC 1-0978 Malakoff, FR
NF X 43-050 NF X 43-269 - Annexe K NF X43-050 (parties utiles de
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LAB (UK)

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UKAS 0671 Basildon, GB
(HSG 248) – 2021 (PCM) based on HSG 248 MAAM 05 based on HSG 248 (HSG 264, 2012)
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ACCREDIA 01446 Ripalimosani, IT
DIN EN ISO 7730 ISO 5667-5 EPA 6020 DIN EN ISO 7393-2 DIN EN ISO 10304-1 + 3 more
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LAB SERVICE

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ACCREDIA 00910 Pollena Trocchia, IT
DIN EN ISO 6888-1 DIN 51750-3 DIN EN ISO 10304-1 ISO 14698-1 DIN EN ISO 6888-2 + 3 more
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LAB-EXPERT

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COFRAC 1-6752 Ivry Sur Seine, FR
NF X43-050 (parties utiles de la NF X 43-050 NF ISO 22262-1 (parties utiles
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ENAC LE285 Alacant, ES
UNE-EN ISO 27888 SM 2540 UNE-EN ISO 8467 UNE-EN ISO 7027-1 UNE-EN ISO 10523 + 3 more
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LABEXIA

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COFRAC 1-1410 Quimper Cedex, FR
DIN EN ISO 14891 DIN EN ISO 6888-2 DIN ISO 16649-2 NF V04-287 DIN EN ISO 6888-3 + 3 more
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COFRAC 1-7014 Plouzane, FR
DIN EN 13346 CEN / TS 14235 NF T 90-412 DIN EN ISO 7899-1 DIN EN 12880 + 3 more
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COFRAC 1-7015 Ploufragan, FR
NF U47-210 NF U47-036-1 NF U47-108 NF U47-100 NF U47-107 + 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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