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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ACCREDIA 02194 Rivoli Cascine Vica, IT
DIN EN 14790 ISO 5667-5 DIN EN 14181 DIN EN ISO 16911-1 ISO 5667-11 + 3 more
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UKAS 9982 Waterside Court, GB
and Appx. 3 of HSG 227 (2004)) in Appendix 5 of HSG 227 (2004) guides HSG 264 (2012) and (HSG 264, 2012)
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ELLAB

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DAkkS D-K-20746-01-00 Bockel, DE
Taupunkttemperatur Widerstandssensor –100 °C bis > 140 °C bis > 240 °C bis + 3 more
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EMCCons RASEK

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DAkkS D-K-12067-01-01 Unterleinleiter, DE
- Gleichspannung > 0,12 V Vorverstärker > 1,2 V > 12 V > 120 V + 3 more
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EMME.2 SRL

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ACCREDIA 01065 Formigine, IT
ISO 4832 ISO 15214 ISO 16649-2 ISO 18787 ISO 18593 + 3 more
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ENAC LC10.206 Sant Cugat del Vallès, ES
200 kg/h ≤ m ≤ 60000 kg/h 200 l/h ≤ Q ≤ 60000 l/h 200 kg/h ≤ m ≤ 30000 kg/h 200 l/h ≤ Q ≤ 30000 l/h 700 Pa ≤ P ≤ 2 MPa + 3 more
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ACCREDIA 00410 Conversano, IT
BS EN 15662 ISO 19250 AOAC 2012.01 2016 DIN EN ISO 10523 ISO 21527-1 + 3 more
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ENV Surveys

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UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 4671 Bilsthorpe, GB
ISO 12185 BS 2000-462.1:01 ISO 10370 DIN EN 12766-1 BS 2000-503:04 + 3 more
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ACCREDIA 01299 Catania, IT
ISO 15705 NF EN ISO 15587-2 et NF EN ISO 11885 DIN EN 12457-2 DIN EN ISO 15587-2 UNI 11184 + 3 more
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DAkkS D-K-21444-01-01 Niederstetten, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 − Durchfluss von Gasen + 3 more
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EPTA NORD

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ACCREDIA 00253 Conselve, IT
DIN CEN ISO 15216-2 ISO 19250 AOAC 2012.01 2016 DIN EN ISO 15587-1 EPA 300.1 1997 + 3 more
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ENAC LE1853 Maliaño, ES
UNE-EN ISO 6892-1 DIN EN 10002-1 ASTM E 8 ASTM E 208 ASTM E208-06 + 3 more
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ERC Testing

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UKAS 23361 Leigh, GB
DIN EN 1863-1 BS EN ISO 10077-1:2006 published 2024) for BS EN DIN EN 1863-2 BS EN ISO 10077-2:2017 + 3 more
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ETAS

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DAkkS D-K-19158-01-00 Stuttgart, DE
- Gleichspannung Quellen und Messgeräte > 1 mV bis > 10 mV bis > 100 mV bis > 10 V bis + 3 more
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COFRAC 1-1147 Sainte-Croix-En-Plaine, FR
DIN EN ISO 6888-1 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 DIN EN ISO 19020 + 3 more
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ACCREDIA 00517 Novara, IT
ISO 18787 DIN EN ISO 6888-1 AOAC 2012.01 2016 ISO 19250 DIN EN ISO 10304-1 + 3 more
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ACCREDIA 00808 Collebeato, IT
ISO 6888-1 ISO 17604 ISO 7899-2 ISO 16649-2 ISO 18593 + 3 more
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ENAC LE1047 Sidamon, ES
ISO 11465 UNE-EN ISO 5983-1 UNE 77318 UNE 13342 UNE-EN 15604 + 3 more
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ENAC LE2182 Coslada, ES
UNE 64106 BS ISO 6731:2010 UNE-EN ISO 712 UNE-EN ISO 5534 ISO 13580 + 3 more
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ACCREDIA 00028 Vimodrone, IT
ISO 6341 ISO 7346-1 ISO 8692 DIN EN 13727 DIN EN 1657 + 3 more
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ENAC LE1574 Palma, ES
UNE-EN ISO 9308-1 UNE-EN ISO 26777 UNE-EN ISO 6222 ISO 16649-2 UNE-EN ISO 6888-1 + 3 more
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ACCREDIA 00923 CORTEOLONA E GENZONE, IT
DIN EN 12457-2 ASTM D5373-21 NEN-EN 13191-1 EPA 5035 ISO 16200-1 + 3 more
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ENAC LE268 Castellón de la Plana, ES
UNE 77061 UNE-EN ISO 15681-2 SM 4500-NH3 F UNE-EN ISO 8467 UNE-EN ISO 6878 + 3 more
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COFRAC 1-2243 Vennecy, FR
DIN EN ISO 21528-2 DIN EN ISO 6888-1 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 + 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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