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

Showing 1,101–1,125 of 1,644 labs

UKAS 2048 Avonmouth, GB
ISO 6888-1 ISO 21528-2 BS ISO 4832:2006 ISO 4833-1 ISO 6579-1 + 3 more
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UKAS 0286 Bradford, GB
DC Resistance DC CURRENT DC VOLTAGE DC RESISTANCE (cont’d)
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UKAS 4600 Kettering, GB
(HSG 264, 2012)
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DAkkS D-PL-11118-01-01 Rudolstadt, DE
DIN EN 1264-5 DIN EN 13647 DIN EN 71-10 DIN EN 50642 DIN EN ISO 14184-2 + 3 more
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PA Group (UK)

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UKAS 4265 Dartford, GB
(HSG 264, 2012)
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ACCREDIA 00238 Cremona, IT
DIN EN 1484 UNI 11757 UNI 10511-1 DIN EN ISO 9308-2 DIN EN ISO 10304-4 + 3 more
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DAkkS D-PL-14361-01-01 Speyer, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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UKAS 0384 Cardiff, GB
HSG 227 (2004)) (HSG 264, 2012) HSG 264 (2012) and Appx. 3 of (HSG 248) – 2021 (PCM) based on HSG 248
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COFRAC 1-1904 Nimes, FR
DIN EN ISO 10703 DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 10704 DIN EN ISO 11704 + 3 more
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COFRAC 1-6634 Vezin Le Coquet, FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 6888-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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DAkkS D-K-17519-01-01 Niestetal, DE
Parallelendmaße aus 0,5 mm Einstellringe aus Stahl * nach DIN EN ISO 3650:1999 Keramik * DIN EN ISO 3650:1999 + 3 more
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PPT srl

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ACCREDIA 00958 San Giovanni Lupatoto, IT
DIN EN 12457-2 DIN EN ISO 6888-1 ISO 4832 DIN EN 13137 DIN EN ISO 11290-1 + 3 more
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ACCREDIA 00706 Latina, IT
BS EN 15662 AOAC 2012.01 2016 AOAC 2000.16 2004 ISO 1871 ISO 21528-2 + 3 more
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ENAC LE2092 Alcázar de San Juan, ES
UNE-EN ISO/IEC 17025
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DAkkS D-K-21209-02-00 Berlin, DE
Railway brake — magnetic track brakes (U − Kraft (WPM) nur Vor-Ort-Kalibrierungen Kraft (WPM) 0,1 kN Vibration measuring instruments — test m + 3 more
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ACCREDIA 00342 Alessandria, IT
DIN EN 1186-3 DIN EN ISO 6888-1 DIN EN ISO 15587-1 NF EN ISO-15587-2 ISO 4832 + 3 more
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ACCREDIA 00983 Faloppio, IT
IEC 60730-1: 2013 DIN EN 60730-2-8 IEC 61000-6-1 DIN EN 50131-2-3 DIN EN 60730-2-9 + 3 more
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DAkkS D-PL-23019-01-01 Heidenau, DE
rs11887534 HABP2-Gen (c.1601G>A) rs7080536 IEC 61924-2 DIN EN ISO 1974 DIN 53121 + 3 more
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DAkkS D-K-15059-01-00 Freiburg im Breisgau, DE
Dosimetrie Luftkerma 5 mGy 2 mGy 100 µGy + 3 more
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UKAS 0649 Prenton, GB
Refractive Index Capillary Viscometer Calibration 2.92 mm systems (continued) Liquids Density in Air at 20 + 3 more
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UKAS 4109 Hatton, GB
MIL-STD 810D, Method 510.2 MIL-STD 810E, Method 510.3 MIL-STD 810G:2008 Method 501.5 MIL-STD 810F, Method 510.4 MIL-STD-810H, Method 510.7 + 3 more
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DAkkS D-ML-13116-01-01 Hameln, DE
Hämoglobin Selen Lithium Zink Eisen, Kupfer + 3 more
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UKAS 0307 Newcastle-upon-Tyne, GB
(HSG 264, 2012)
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UKAS 0635 Newcastle-upon-Tyne, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 0179 Bromley, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
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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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