A salt spray test is a corrosion testing method that uses high-saline environments to measure the corrosion resistance of products, paints and coatings over extended periods. 

Sometimes referred to as salt fog, a salt spray test is conducted in a closed chamber that can be adjusted to create a variety of corrosive environments. During testing, samples are subjected to a specified salt concentration for a pre-determined amount of time, based on specification, product type, or industry standards. 

Salt spray test conditions

In a typical salt spray test, a standardized solution of 5% NaCl (sodium chloride) is used to create a highly corrosive atmosphere. For projects with additional requirements, we can often adjust environmental conditions like temperature and humidity to simulate specific climates or working conditions. 

Samples are often checked at regular intervals to monitor corrosion levels and record any milestones, including white and red rust development, coating degradation, and more.  Our labs can provide detailed test reports that include pictures and descriptions of each stage of testing, from start to finish.

Element’s salt spray capabilities

Our experts can assist in choosing the most appropriate test method for multiple coating types, including electroplated copper-nickel-chromium, electroplates copper-nickel, and anodized aluminum. We support salt spray tests for a variety of products and applications, and our corrosion experts are highly trained across multiple disciplines. With a global platform of accredited, high-capacity labs, Element helps ensure that your projects are accurate, on-time, and within budget.

 
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salt spray testing

Alternative salt spray test conditions

Alternative salt spray testing can simulate a variety of corrosive environments to ensure the integrity of a product.

When routine testing isn’t enough, Element offers alternative salt spray test methods to cover a variety of conditions. For large or unusually shaped components, our largest chamber is 8’H x 8’W x 10’L, and can reach temperatures of up to 55°C.

Some of our capabilities include:

  • Neutral salt spray (NSS)
  • Acetic acid salt spray (ASS)
  • Copper-accelerated acetic acid salt spray (CASS)
  • Calcium chloride (CaCl₂)
  • Synthetic seawater testing
  • Hydrogen induced cracking (HIC)
  • Custom cyclic corrosion testing
 
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Standards We Test To

American National Standards Institute

ANSI/SCTE 143SCTE

American Society for Testing and Materials

ASTM B117, ASTM B368, ASTM D1654, ASTM D1745, ASTM D2247, ASTM G85

Deutches Institut für Normung

DIN 50021

General Motors

GM 4298, GM 9540

International Electrotechnical Commission

IEC 60068, IEC 60945, IEC 68-2-11

International Standards Organization

ISO 9227, ISO 12944, ISO 20340

Military Standards

DEF STAN 07-55, DEF STAN 00-35, MIL-STD-202, MIL-STD-810, MIL-A-8625, MIL-F-5541, MIL-DTL-5541, MIL-STD-1312, MIL-STD-883, RTCA DO-160

National Association of Corrosion Engineers

NACE TM-0284

National Electrical Manufacturers Association

NEMA 250

Netherlands Normalisatie-Instituut

NEN 10068

Society of Automotive Engineers

SAE J1810, SAE J1211, SAE J2334

Telecordia

GR-487-CORE

Underwriters Laboratory

UL 2703, UL 50

 

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