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
🇩🇪 DIN EN ISO 9227 🇬🇧 BS EN ISO 9227 🇫🇷 NF EN ISO 9227 🇮🇹 UNI EN ISO 9227 🇪🇸 UNE EN ISO 9227 🇳🇱 NEN EN ISO 9227 🇩🇪 DIN EN ISO 10289 🇬🇧 BS EN ISO 10289 🇫🇷 NF EN ISO 10289 🇮🇹 UNI EN ISO 10289 🇪🇸 UNE EN ISO 10289 🇳🇱 NEN EN ISO 10289
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ENAC LE027 Paterna, ES
UNE 137001 UNE 49706 UNE-EN ISO 2234 UNE-EN ISO 12048 UNE-EN ISO 2244 + 3 more
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IEC 60068-2-1 IEC 60068-2-2 UNE-EN 60068-2-14 UNE-EN 60068-2-78 IEC 60068-2-6 + 3 more
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ENAC LC10.098 San Ginés, ES
EURAMET cg-18 CEM Ed CEM GUIA CEM TH-001 CEM TH-007 + 3 more
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UNE-EN ISO 3452-1 UNE-EN ISO 5817 UNE-EN ISO 23277 UNE-EN ISO 10042 UNE-EN ISO 13919-1 + 3 more
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ISO 2808 ISO 48-4 UNE-EN ISO 2808 ISO 2409 UNE-EN ISO 2360 + 3 more
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ENAC LE069 Durango, ES
UNE-EN ISO 9934-1 UNE-EN ISO 3059 UNE-EN 10228-1 UNE-EN 26157-3 UNE-EN 26157-1 + 3 more
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ENAC LE149 Móstoles, ES
UNE-EN 60567 IEC 60814 UNE-EN 61198 IEC 60247 UNE-EN 61619 + 3 more
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ENAC LE1230 Porriño, ES
UNE-EN 60068-2-6 UNE-EN 60068-2-64 ISO 16750-2: 2012 Vibration and shock — experimental modal UNE-EN 60068-2-38 + 3 more
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ENAC LE1404 Alcalá de Henares, ES
UNE-EN ISO 2409 UNE-EN ISO 2813 UNE-EN ISO 2360 UNE-EN ISO 1519 UNE-EN ISO 2815 + 3 more
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ENAC LE2439 Elche, ES
ISO 14389 BS EN ISO 14362-1 BS EN ISO 14362-3 UNE-EN ISO 14362-1 UNE-EN ISO 14362-3 + 3 more
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ENAC LC10.018 Eibar, ES
EURAMET CG-2 CEM DI-014 CEM DI-037 UNE-EN ISO 2178 UNE-EN ISO 16809 + 3 more
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ENAC LE814 Noáin, ES
UNE-EN 55016-2-1 UNE-EN 55011 UNE-EN IEC 61000-6-2 UNE-EN 61000-4-4 UNE EN 61000-4-5 + 3 more
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ENAC LE024 Derio, ES
UNE-EN 772-20 UNE-EN 772-13 UNE-EN 772-1 UNE-EN 772-21 UNE-EN 772-3 + 3 more
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ENAC LE2514 Donostia-San Sebastián, ES
UNE-EN ISO 9227
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ENAC LE2909 Getafe, ES
ISO 2409 Salt spray / neutral salt fog test (ISO
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IDE ELECTRIC

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ENAC LE2674 Zuera, ES
IEC 62208: 2011-08 UNE-EN IEC 60695-2-11 IEC 60695-2-11 IEC 60529: 1989 IEC 62262 + 3 more
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ENAC LE159 Santa Oliva, ES
DIN EN 1385 EN 17092-1:2020 DIN EN ISO 5077 EN 1317-1 DIN EN ISO 13688 + 3 more
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ENAC LE257 Zaragoza, ES
IEC 61000-4-13: 2002 DIN EN 50121-3-2 IEC 61000-3-2: 2014 DIN EN 60601-1-2 IEC 61000-3-3 + 3 more
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ENAC LE130 Madrid, ES
DIN EN 60335-2-51 DIN EN 60335-2-43 IEC 62054-21 IEC 60335-2-51 DIN EN 60335-2-99 + 3 more
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ENAC LE2199 Vitoria-Gasteiz, ES
UNE-EN ISO 6270-2 UNE-EN ISO 9227 UNE-EN ISO 11997-1 UNE-EN IEC 60068-2-11 UNE-EN ISO 22479 + 3 more
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ENAC LE894 Bellaterra, ES
UNE-EN 12015 UNE-EN 50065-1 UNE-EN IEC 61000-6-4 UNE-EN IEC 61000-6-3 UNE-EN 61000-6-3 + 3 more
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ENAC LE2431 Montmeló, ES
UNE-EN ISO 4136 ASTM E290 UNE-EN ISO 5178 ASTM E 112 ASTM A 370 + 3 more
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ENAC LE1908 Puerto de Santa María, ES
ASTM D 2240 ISO 48-4 ISO 868 ISO 7619-1:2004 ISO 2781 + 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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