Scope
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
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DIN EN ISO 9227
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BS EN ISO 9227
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NF EN ISO 9227
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UNI EN ISO 9227
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UNE EN ISO 9227
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NEN EN ISO 9227
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DIN EN ISO 10289
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BS EN ISO 10289
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NF EN ISO 10289
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UNI EN ISO 10289
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UNE EN ISO 10289
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NEN EN ISO 10289
139
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Tecnolab del Lago Maggiore
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ISO 37
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DIN EN 60068-2-30
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White Lab s.r.l. - C.T.R.
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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:
Other Test Methods
- Tensile Testing of Metallic Materials
- Hardness Testing of Metallic Materials
- Charpy Impact Testing
- Electromagnetic Compatibility (EMC) Testing
- Chemical Analysis -- ICP & XRF Spectroscopy
- Force Transducer Calibration
- Reaction-to-Fire Testing
- Ultrasonic Non-Destructive Testing
- Tensile Testing of Plastics
- Technical cleanliness of fluid system components
- Technical cleanliness and particle contamination analysis
- Sound power level determination — general measurement guidelines
- Sound power — reverberation field engineering method
- Sound power — enveloping surface engineering method
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- Acoustics Tonality Assessment for Noise Annoyance
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