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 LE149 Móstoles, ES
UNE-EN 60567 IEC 60814 UNE-EN 61198 IEC 60247 UNE-EN 61619 + 3 more
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COFRAC 1-5703 Bron Cedex, FR
NF T 30-074 NF T 30-094 NF T 34-550 NF P 98-620 NF T 30-012 + 3 more
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COFRAC 1-0064 Saint-Marcel, FR
DIN EN 1254-2 DIN EN 1254-3 DIN EN 1254-5 DIN EN 12101-10 BS EN 50291-1:2018 + 3 more
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ACCREDIA 00215 Montelabbate, IT
ISO 16000-3 BS ISO 9227:2022 ISO 16000-6 ISO 16000-9 DIN EN 14749 + 3 more
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COFRAC 1-1648 Nogent, FR
(BS EN ISO 6892-1: 2019) DIN EN ISO 643 EN ISO 12624 ISO 4967 ASTM E8/8M + 3 more
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ACCREDIA 00009 Bollate, IT
BS 1363-1 BS EN 15662 DIN EN ISO 6888-1 DIN EN 60068-2-30 DIN EN 81-58 + 3 more
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COFRAC 1-1542 Saint Martin D'Heres, FR
DIN EN 1279-2 DIN EN 1279-5 DIN EN 12094-10 EN 1279-6 – Méthode de référence DIN EN 14449 + 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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DAkkS D-PL-19887-01-00 Emmingen-Liptingen, DE
DIN EN ISO 10993-5 DIN EN ISO 10993-1 DIN EN ISO 10993-18 DIN EN ISO 11737-2 DIN EN ISO 11137-2 + 3 more
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DAkkS D-K-11081-02-01 Chemnitz, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 auch Vor-Ort Kalibrierung bahntypischer –0,26 mm + 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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DAkkS D-K-22423-01-00 Ettlingen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen
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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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DAkkS D-K-19931-01-01 Fichtenberg, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen
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COFRAC 1-0912 Colomiers, FR
ASTM E8/E 8M DIN EN ISO 10523 2012-04 ASTM E 21 ASTM B557/B557M ASTM E 139 + 3 more
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DAkkS D-K-15180-01-01 Wiesloch, DE
Elektrische Messgrößen Gleichstrom- und Niederfrequenzmessgröße Railway brake — magnetic track brakes (U − Gleichspannung − Gleichstromstärke + 3 more
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ACCREDIA 00751 Amaro, IT
ETSI EN 301 489-1: V2.2.3 DIN EN IEC 60068-2-11 ISO 21498-2 BS ISO 9227:2022 DIN EN 60695-10-2: 2016 + 3 more
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DAkkS D-PL-17354-01-00 Zwickau, DE
ISO 16750-3 DIN EN 60068-2-53 DIN EN 60068-2-64 ISO 20653 ISO 16750-4 + 3 more
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DAkkS D-K-19502-01-01 Furtwangen, DE
Frequenz - Gleichspannung Spannungsquellen 5 µV 1 mV Messgeräte > 10 mV + 3 more
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COFRAC 1-1793 Saint Apollinaire, FR
ISO 13320 BS ISO 9277:2010 DIN EN ISO 643 ASTM E 112 ISO 10993-18 + 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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DAkkS D-K-20846-01-00 Goslar, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32)
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ENAC LE2514 Donostia-San Sebastián, ES
UNE-EN ISO 9227
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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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