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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UKAS 4037 Welwyn Garden City, GB
(HSG 248) – 2021 (PCM) based on HSG 248 PRO02 based on HSG 248
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ACCREDIA 00298 Modena, IT
ISO 4832 ISO 18593 AOAC 2012.01 2016 ISO 1871 DIN EN ISO 4833-1 + 3 more
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GAIAMBIENTE

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ACCREDIA 01024 Povoletto, IT
DIN 3388-4 DIN EN 12457-2 EPA 6020 EPA 3015 DIN 51750-3 + 3 more
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DAkkS D-PL-13392-01-00 Gilching, DE
DIN EN ISO 10993-1 ISO 10993-12 DIN EN ISO 10993-5 DIN EN ISO 17405 ISO 19227 + 3 more
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ENAC LC10.116 Puerto de Santa María, ES
3 mV  U < 330 mV 0,33 V  U < 3,3 V 3,3 0 mV  U < 200 mV 200 mV  U < 2 V 2 V  0 mV  U  100 mV 0,1 V < U  1 V 1 V < 5 mV  U  30 V 10 mV  U < 33 mV 50 Hz  f  1 kHz 1 kH + 3 more
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ACCREDIA 01385 Calcinato, IT
DIN EN 12457-2 DIN EN ISO 10304-1 UNI 10802 DIN EN ISO 15587-1 DIN EN 15411 + 3 more
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ACCREDIA 02191 Zola Predosa, IT
UNI 10780 DIN EN ISO 10523 DIN EN ISO 54321 ISO 10390 DIN EN ISO 21149 + 3 more
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ACCREDIA 00558 Busca, IT
BS EN 15662 AOAC 2012.01 2016 DIN 51750-3 DIN EN ISO 10304-1 DIN EN ISO 6888-2 + 3 more
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GEO LAB

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ACCREDIA 00704 Rende, IT
DIN EN 12457-2 ISO 17604 ISO 18787 DIN EN ISO 6888-1 EPA 3630 + 3 more
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GEO LABO

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ACCREDIA 00957 Castrocielo, IT
UNI 10780 ISO 15705 DIN EN 16173 ISO 23695
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ENAC LE2121 Llinars del Valles, ES
ISO 9994 ISO 22702 ASTM F400 ASTM F2201
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GHMT

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DAkkS D-PL-17559-01-01 Bexbach, DE
DIN EN 50173-1 DIN EN 50173-2 DIN EN 50173-3 DIN EN 50173-4 DIN EN 50173-5 + 3 more
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COFRAC 1-6437 Évreux Cedex, FR
NF T 90-412 DIN EN ISO 7899-1 NF U47-101 DIN ISO 11465 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-5684 Saint-Contest, FR
DIN EN ISO 17294-2 DIN 51750-3 DIN EN ISO 14403-2 NF EN ISO 54321 et NF T 90-412 + 3 more
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COFRAC 1-6185 Saint-Lô Cedex, FR
DIN ISO 17289 NF X 31-615 ISO 15648 ISO BS EN 3727-1:2002 ASTM D 7238 + 3 more
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ACCREDIA 00093 Santo Stefano Ticino, IT
ISO 6888-1 AOAC 2012.01 2016 DIN EN ISO 10272-1 ISO 4832 ISO 4833-1 + 3 more
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RvA C480 Ljubljana, NL
IEC 17025
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DAkkS D-PL-11085-01-00 Frankfurt am Main, DE
DIN 51757 DIN EN ISO 12185 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 237 + 3 more
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DAkkS D-K-11243-01-00 Stade, DE
Koordinatenmesstechnik Lasertracker* 0,5 m 1) In den CMC sind die erweiterten Messu Bügelmessschrauben* 0 mm + 3 more
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GMC-I Service

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DAkkS D-K-20313-01-01 Nürnberg, DE
- Gleichspannung Messgeräte > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
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GOMETRICS

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ENAC LC10.194 Palau-solità i Plegamans, ES
EURAMET cg-18 CEM cg-19 UNE-EN ISO 14644-3 UNE-EN ISO 14644-1
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DAkkS D-ML-13406-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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DAkkS D-ML-18202-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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DAkkS D-K-18186-01-00 Bitterfeld-Wolfen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Innen- und Tiefenmaße Wägewert/ + 3 more
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GRASI Srl

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ACCREDIA 00603 Frosinone, IT
EPA 3005 DIN EN 12457-2 EPA 6020 EPA 3015 UNI 10802 + 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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