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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 4406 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 4406 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 4406 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 4406 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 4406 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 4406
1,865 Accredited labs
17 Countries

Showing 101โ€“125 of 362 labs

UKAS 0756 Redruth, GB
DIN EN 933-1 (PCM) based on HSG 248 (HSG 248) โ€“ 2021 DIN EN 932-1 DIN EN 932-2 + 3 more
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Crown Windley

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UKAS 30213 Derby, GB
Surface plates LENGTH Straight edges
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UKAS 9418 Worthing, GB
(HSG 264, 2012)
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UKAS 31255 Swinton, GB
(HSG 264, 2012)
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UKAS 6856 Basildon, GB
(HSG 248) โ€“ 2021 (HSG 264, 2012)
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UKAS 0138 Irlam, GB
Gas pressure (absolute) Gas pressure (gauge) Hydraulic pressure (gauge) Hydraulic Pressure (absolute) PRESSURE (contโ€™d) + 1 more
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UKAS 0143 Letchworth Garden City, GB
LENGTH Blade type Straight edges Surface plates External micrometer + 3 more
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DNKA

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UKAS 9730 Govan, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) โ€“ 2021 QSOP 03 based on HSG 248 QSOP 01 based on HSG 248
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UKAS 7783 Belfast, GB
DIN EN 12469 EN 14175-3-2004
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UKAS 4303 Ammanford, GB
1) MS08P based on BS EN ISO MS02P based on BS EN ISO MS03P based on BS EN ISO MS06P based on BS EN ISO MF07P based on BS EN ISO + 3 more
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UKAS 0254 Plymouth, GB
Specific Values 1 ๏— RF Power RF Attenuation 10 MHz to 1 GHz Other values -20 dBm to +20 dBm
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UKAS 0687 Devonport, GB
BS 4206:1967 (superseded) ISO 5173 ISO 7438 BS EN ISO 9606-2:2004 BS 131-5:1965 + 3 more
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UKAS 0560 Bingley, GB
TIME INTERVAL TEMPERATURE parameters and ranges)
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E C L (2000)

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UKAS 0709 Forest Hall, GB
(PCM) based on HSG 248) (HSG 248) โ€“ 2021
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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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ENV Surveys

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UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) โ€“ 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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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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UKAS 2398 Hull, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 10169 Jordanstown, GB
EN 1364-3 DIN EN 1366-4 EN 1364-4 BS 476-21 BS 476-22 + 3 more
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UKAS 4225 Deeside, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 based on BS EN 12457 DIN EN 1948-4 dbSNP rs1800562, rs1799945, rs1800730, r
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UKAS 0170 Heaton Mersey, GB
(HSG 264, 2012) HSG 227 (2004)) (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 0136 Rotherham, GB
ISO 3651-2 ASTM A262 Methods A, C & E ISO 7438 ASTM G28-2022 Method A ASTM G48 Method A + 3 more
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UKAS 0621 Wednesbury, GB
DIN EN 1303 DIN EN 12209 DIN EN 14846 BS 3621:2007+A2:2012 BS 8621:2007+A2:2012 + 3 more
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Elis UK

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UKAS 4556 Coventry, GB
ISO 14698-1
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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 โ€” Fluids for general applications โ€” Coding of the degree of cleanliness
  • DIN EN ISO 16232 Road vehicles โ€” Cleanliness of components for fluid circuits
  • VDA Band 19.1 Technical cleanliness โ€” Particle contamination of functionally relevant parts

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