ISO 9227

Salt Spray Corrosion Testing

Salt spray testing subjects coated or treated metallic specimens to a controlled saline fog environment to assess corrosion resistance and coating adhesion. ISO 9227 defines three variants: neutral salt spray (NSS), acetic acid salt spray (AASS), and copper-accelerated acetic acid salt spray (CASS). Results guide coating selection for automotive, marine, and outdoor applications.

What it measures

  • Time to first visible corrosion (hours)
  • Coating adhesion after salt-fog exposure
  • Creep corrosion from a scribe line
  • Overall corrosion rating per ISO 10289 / ISO 4628
🇧🇪 NBN EN ISO 9227 🇩🇪 DIN EN ISO 9227 🇬🇧 BS EN ISO 9227 🇫🇷 NF EN ISO 9227 🇮🇹 UNI EN ISO 9227 🇪🇸 UNE EN ISO 9227 🇳🇱 NEN EN ISO 9227 🇧🇪 NBN EN ISO 10289 🇩🇪 DIN EN ISO 10289 🇬🇧 BS EN ISO 10289 🇫🇷 NF EN ISO 10289 🇮🇹 UNI EN ISO 10289
252 Accredited labs
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A.Q.C. SRL

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ACCREDIA 00925 Napoli, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO DIN EN ISO 7438 DIN EN ISO 4136 + 3 more
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DAkkS D-PL-20374-01-00 Mühlhausen, DE
DIN EN 13018 ISO 16750-5 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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ENAC LE027 Paterna, ES
ISO 3795 DIN EN 60529 IEC 60529: 1989 IEC 60068-2-1 IEC 60068-2-2 + 3 more
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COFRAC 1-1322 Oraison, FR
DIN EN ISO 16212 DIN EN ISO 18415 DIN EN ISO 21149 DIN EN ISO 11930 DIN EN ISO 10993-5 + 3 more
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ENAC LE808 Tres Cantos, ES
Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Railway braking — thermal analysis (EN 1 Influenza A/H1-2009 DIN EN 50155 + 3 more
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COFRAC 1-1720 Val-De-Reuil, FR
Salt spray / neutral salt fog test (ISO BS ISO 9227:2022
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AQM SrL

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ACCREDIA 00091 Provaglio D'Iseo, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO DIN EN 10160 DIN EN ISO 17637 + 3 more
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ENAC LC10.098 San Ginés, ES
CEM TH-001 CEM ME-003 CEM TH-005 CEM TH-007 EURAMET cg-18 + 3 more
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ENAC LE158 Porriño, ES
DIN EN ISO 2360 DIN EN ISO 2178 ASTM E 415 ASTM E 1086 ASTM E 1251 + 3 more
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BELAC 084-TEST Bruxelles, BE
ISO 10297:2024+Amd 1:2017 EN ISO 14245:2021 EN ISO 23826:2021 ISO 17871:2015 ISO 11117:2019 + 3 more
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DAkkS D-PL-22228-01-01 Regensburg, DE
ISO 20653 VDE 0468-2-1 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 VDE 0468-2-14 + 3 more
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DAkkS D-PL-11087-01-01 Künzelsau, DE
- PiM rs6647, PiZ rs28929474, rs17580 ISO 5658-2 DIN EN ISO 6507-1 DIN EN ISO 3497 DIN EN ISO 898-1 + 3 more
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UKAS 1993 Coventry, GB
ASTM B117-19 BS ISO 9227:2022 TA142-2 using ASTM E1135-19 TA142-1 using ASTM D95-23 and ASTM E203-16
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ACCREDIA 01184 Como, IT
Salt spray / neutral salt fog test (ISO ISO 6270-2 ASTM D 522 ISO 2813 ISO 16474-2 + 3 more
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DAkkS D-K-19562-01-01 Kaufbeuren, DE
Salt spray / neutral salt fog test (ISO 510 mm elektronische Waagen (Härteskalen HV0,01 Durchmesser 1 mm + 3 more
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DAkkS D-PL-20258-01-01 Heilbronn, DE
ISO 20653 DIN EN ISO 6270-2 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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DAkkS D-PL-20885-01-03 Obernburg, DE
AK gegen BP 180 rs2066845 ISO 3795 DIN 75200 DIN EN ISO 1463 + 3 more
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DAkkS D-PL-11092-01-01 Neumarkt, DE
Salt spray / neutral salt fog test (ISO ISO 20653 VDE 0468-2-1 DIN EN IEC 60068-2-11 VDE 0468-2-11 + 3 more
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DAkkS D-PL-11092-01-00 Nürnberg, DE
ISO 20653 DIN EN IEC 60068-2-11 DIN EN 60068-2-30 IEC 60068-2-82 ISO 16750-3 + 3 more
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DAkkS D-K-17702-01-00 Garching, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) 1) In den CMC sind die erweiterten Messu − Waagen + 2 more
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DAkkS D-PL-22860-01-01 Reutlingen, DE
Salt spray / neutral salt fog test (ISO ISO 16750-5 VDE 0468-2-1 DIN EN IEC 60068-2-5 VDE 0468-2-5 + 3 more
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DAkkS D-PL-14564-01-03 Berlin, DE
DIN EN ISO 1463 DIN EN ISO 6270-2 DIN EN ISO 22479 DIN EN 60243-1 ISO 6270-2 + 3 more
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DAkkS D-PL-12028-01-00 Radolfzell am Bodensee, DE
ISO 3795 DIN 75200 ISO 20653 DIN EN ISO 6270-2 DIN EN IEC 60068-2-11 + 3 more
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BETALAB

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ACCREDIA 00549 Villa Carcina, IT
Salt spray / neutral salt fog test (ISO Technical cleanliness of fluid system co DIN EN ISO 6506-1 DIN EN ISO 6507-1 DIN EN ISO 1463 + 3 more
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DAkkS D-PL-21701-01-01 Solingen, DE
DIN EN ISO 1463 DIN EN ISO 6270-2 ISO 6270-2 DIN EN ISO 2808 ISO 2808 + 3 more
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Industries

Automotive Marine Construction Coatings Electronics

Related Standards

  • ISO 9227 Corrosion tests in artificial atmospheres -- Salt spray tests
  • ISO 10289 Methods for corrosion testing of metallic and other inorganic coatings
  • ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
  • ISO 4628-3 Paints and varnishes -- Rusting assessment

Regulatory Context

This test method is referenced by:

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