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 101–125 of 1,644 labs

DAkkS D-K-19792-01-01 Alsdorf, DE
Gleichstromleistung / Messgeräte Wirkleistung Leistungsfaktor - Gleichspannung + 3 more
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ACCREDIA 00803 Cremona, IT
ISO 6888-1 ISO 18787 ISO 4831 ISO 11731 ISO 4833-1 + 3 more
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ACCREDIA 02321 Roma, IT
IEC 15408-1 IEC 18045 IEC 18367 IEC 20543 IEC 20004
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COFRAC 1-6997 Les Ancizes-Comps, FR
DIN EN ISO 6508-1 DIN EN 2002-002 ASTM E 21 DIN EN 2002-005 ASTM E 139 + 3 more
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AUBRET

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COFRAC 1-1573 Vallons-De-L'Erdre, FR
DIN EN ISO 11290-1 DIN EN ISO 6579-1 BS ISO 15214:1998 DIN EN ISO 11290-2
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AWE

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UKAS 1854 Reading, GB
(HSG 248) – 2021 LQP007 based on HSG 248 LQP003 based on HSG 248 (PCM) based on HSG 248
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UKAS 0477 Gosport, GB
the guidance of GPG 14 PERSONAL DOSE EQUIVALENT: RESPONSE:
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UKAS 0078 Portchester, GB
DC Resistance CFH-Gen, Macula-Degeneration DC RESISTANCE (continued) DC VOLTAGE DC VOLTAGE (continued) + 3 more
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UKAS 2418 Cleckheaton, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227
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UKAS 0483 Hemel Hempstead, GB
ISO 11654 BS EN ISO 10140-2:2021 ISO 7171 ISO 354 BS EN ISO 10140-3:2021 + 3 more
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UKAS 0653 Milton Keynes, GB
Sound Calibrators Pistonphones based: level Microphones + 2 more
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UKAS 8504 Glasgow, GB
(HSG 264:2012) HSG 227 Appendix 5: By HSG 227 Appendix 3: By
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UKAS 9064 Paignton, GB
DIN EN ISO 11127-6 DIN EN 13727 1) BS EN ISO 11930:2019+ 2) QMIC WI 22, based on BS EN
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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Air Surveys

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UKAS 0553 Wandsworth, GB
(HSG 248) – 2021 APP 7 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) APP 15 based on HSG 248 + 2 more
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UKAS 0232 Manchester, GB
(HSG 264, 2012)
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UKAS 2054 Manchester, GB
(HSG 248) – 2021 AEC 1 based on HSG 248 (PCM) based on HSG 248 AEC 6 based on HSG 248
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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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UKAS 4376 Alton, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 0681 Writtle, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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UKAS 1765 Kilmarnock, GB
BS ISO 18283:2022 ASTM D2234 (location E) ASTM D2013 (location B) BS ISO 5074:2015; and ASTM D409:2016 + 3 more
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DAkkS D-K-19562-01-01 Kaufbeuren, DE
Durchmesser 1 mm 510 mm Rundheitsabweichung 1 mm Parallelitätsabweichung Rundheitsabweichung + 3 more
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UKAS 0666 Pontypridd, GB
DC Resistance 2.92 mm systems (continued) DC VOLTAGE AC CURRENT DC Power + 3 more
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UKAS 6093 Scorrier, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 0212 Redruth, GB
(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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