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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ACCREDIA 00144 Pomezia, IT
UNI 10591 ISO 17604 AOAC 2012.01 2016 UNI 10590 ISO 14698-1 + 3 more
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ACCREDIA 00700 Catania, IT
EPA 6020 DIN EN 12457-2 BS EN 15662 DIN EN ISO 6888-1 EPA 3015 + 3 more
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ACCREDIA 00816 Bergamo, IT
BS EN 15662 DIN EN ISO 6888-1 AOAC 2012.01 2016 DIN EN ISO 15213-2 ISO 4832 + 3 more
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ACCREDIA 00894 Casa Santa Erice, IT
ISO 6888-1 ISO 6888-2 DIN EN ISO 10304-1 BS EN 12697-13:2017 ISO 14189 + 3 more
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ACCREDIA 00648 Aulla, IT
ISO 17604 ISO 18787 BS EN 15662 AOAC 2012.01 2016 BS 7889:1997 (withdrawn) + 3 more
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DAkkS D-ML-17159-01-00 Berlin, DE
Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Hämatokrit Leukozyten + 3 more
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DAkkS D-ML-18033-01-00 Köln, DE
Liste aller Untersuchungsverfahren im fl Webpräsenz des Medizinischen Laboratoriu HbA1c Basophile Basophile absolut + 3 more
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DAkkS D-ML-18493-01-00 Darmstadt, DE
HbA1c Großes Blutbild Kleines Blutbild Retikulocyten Natriumchlorid + 3 more
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DAkkS D-PL-20504-01-01 Hockenheim, DE
DIN EN ISO 7027-1 (C 21) DIN EN 27888 (C 8) DIN EN ISO 9308-1 (K 12) DIN EN ISO 7393-2 (G 4-2) DIN EN ISO 16266 (K 11) + 3 more
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DAkkS D-ML-13247-01-01 Sindelfingen, DE
Ristocetin Kofactor Aktivität Willibrand Faktors a-Hydroxy-Alprazolam Amilsulprid 7-amino-Flunitrazepam + 3 more
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Ladisa

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ACCREDIA 01963 Bari, IT
ISO 6888-1 ISO 18787 BS EN 15662 AOAC 2012.01 2016 DIN EN ISO 10304-1 + 3 more
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UKAS 0495 Chorley, GB
PRESSURE (cont’d) Distortion Factor Spot frequency Phase angle (Herpes simplex virus type + 3 more
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UKAS 0937 Chessington, GB
(HSG 248) – 2021 (PCM) based on HSG 248 P-12 based on HSG 248
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UKAS 0625 Preston Riversway Docklands, GB
(HSG 248) – 2021 (PCM) based on HSG 248 ISO 12966-2 F06 6 & F06 5 based on BS EN F05 4 based on BS 770:Part + 3 more
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DAkkS D-PL-18547-02-03 Neumünster, DE
DIN EN 16174 DIN CEN ISO/TS 16179 DIN EN 15933 DIN ISO 15178 DIN EN 15936 + 3 more
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DAkkS D-ML-18515-01-00 Dresden, DE
GPT GOT GGT Salmonellen Shigellen + 3 more
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DAkkS D-PL-18747-02-01 Osterholz-Scharmbeck, DE
DIN EN 1622 (B 3) DIN EN ISO 7887 (C 1) DIN EN ISO 7027-1 (C 21) DIN EN 27888 (C 8) DIN EN ISO 9308-1 (K 12) + 3 more
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ACCREDIA 00138 Oristano, IT
ISO 4833-1 ISO 16649-2 ISO 6888-2 DIN EN ISO 11290-1 ISO 6579-1 + 3 more
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Leadec BV &

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DAkkS D-K-21171-01-01 Chemnitz, DE
Gleichspannung 33 mV Messgeräte 0,33 V 330 V Gleichstromstärke 33 µA Messgeräte 0,33 mA + 3 more
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UKAS 6998 Port Talbot, GB
(HSG 264, 2012)
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UKAS 4707 Port Talbot, GB
(HSG 248) – 2021 LSOP6 based on HSG 248 (PCM) based on HSG 248
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DAkkS D-K-21443-01-00 Schmalkalden, DE
(ein- und mehrgängige zylindrische Außen- und symmetrischem und unsymmetrischem Profil) Außengewinde + 3 more
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DAkkS D-PL-11240-01-01 Bremen, DE
DIN EN 60601-2-4 IEC 60512-4-1 DIN EN 124-2 IEC 60512-4-3 DIN EN 60601-2-44 + 3 more
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DAkkS D-PL-19164-01-00 Kreuzau-Obermaubach, DE
DIN 38402-A 13 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-3 (A 21) DIN EN ISO 19458 (K 19) DIN EN 1622 (B 3) + 3 more
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COFRAC 1-5749 Aspach-Le-Bas, FR
DIN ISO 17289 ISO 5667-9 (hors échant. DIN EN ISO 7027-2 NF X 31-615 (Uniquement DIN EN ISO 10523 + 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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