Corrosion Testing

Corrosion is one of the leading causes of material degradation and product failure in industries exposed to moisture, salt, chemicals, and harsh environments. LIB industry corrosion testing solutions help manufacturers evaluate corrosion resistance, coating durability, and long-term reliability — with advanced simulation technology, customizable configurations, and full technical support to meet international standards and extend product service life.

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Simulate salt spray, humidity, SO₂, and composite atmospheric corrosion to evaluate the durability and service life of materials and products — meeting ASTM, ISO, SAE, VDA, and other international standards.

Different products require different corrosion tests, depending on material type, protective coating, application environment, and industry standard.

 

Which Corrosion Test Standard Does Your Industry Need?

Industry / Application

Common Standards

Recommended Test Method

Recommended Equipment

Automotive components

SAE J2334 / ASTM G85 / VDA 621-415

Cyclic corrosion test

→ Cyclic corrosion test chamber

Electronics / control cabinets

ISO 6988 / DIN 50018 / IEC 60068-2-42

SO₂ salt spray composite test

→ SO₂ salt spray corrosion test chamber

Hardware / general coatings

ASTM B117 / ISO 9227 NSS

Neutral salt spray (NSS) test

→ Salt spray test chamber

Decorative plating / export products

ASTM B368 / ISO 9227 CASS

CASS test

→ CASS test chamber

Painted / coated panels

ISO 4623-1/2 / ASTM D2803

Filiform corrosion test

→ Filiform corrosion test chamber

Large assemblies / irregular parts

Application-dependent

Composite / custom test

→ Walk-in corrosion chamber

Find the right standard and recommended equipment for your industry, or contact LIB industry directly.

 

LIB provides corrosion testing solutions for the following tests:

Neutral Salt Spray (NSS) Test

Neutral Salt Spray testing uses a neutral sodium chloride solution to create a controlled corrosive environment.

  • Common standards

ASTM B117

ISO 9227 NSS

Recommended Equipment

Salt Spray Test Chamber

Salt Spray Test Chamber

Using a 5% NaCl solution, the temperature is controlled at 35℃ ±2℃, and the spray deposition volume is precisely controlled at 1-2ml/80cm²/h.

The cabin body is made of FRP, anti-haze material. Long-term use will not affect the stability of the test environment due to corrosion, and the test data can be directly used for routine quality comparison assessment.

                  

CASS Test (Copper Accelerated Acetic Acid Salt Spray)

CASS testing is a more aggressive salt spray method that uses copper chloride and acetic acid to accelerate corrosion.Compared with NSS testing, CASS provides faster corrosion evaluation and is commonly used for advanced surface coatings.

  • Common standards:

ASTM B368

ISO 9227 CASS

Recommended Equipment

CASS Test Chamber

​                                               CASS Test Chamber 

The LIB CASS test chamber operates at 50℃ ±2℃ and can provide results 3-8 times faster than the neutral salt spray test.

Controlled by PLC/touch screen,, it supports precise pH value and copper ion concentration control, avoiding unstable test results due to errors in reagent ratio and being questioned by customers about the credibility of the data.

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Cyclic Corrosion Test

Traditional salt spray tests provide continuous salt exposure, while cyclic corrosion testing combines multiple environmental conditions to better simulate real service environments.

  • Common standards:

ASTM G85

SAE J2334

VDA 621-415

Composite Corrosion Test

Composite corrosion testing combines different corrosion factors including Salt atmosphere, Industrial pollution,High humidity,Chemical environment to simulate complex environments.

  • Common standards:

ASTM G85

IEC 60068 series

Recommended Equipment

Cyclic Corrosion Test Chamber

   Cyclic Corrosion Test Chamber 

The LIB corrosion test chamber precisely replicates the salt spray-humidity-drying multi-stage cycle. The temperature and humidity uniformity is controlled within ±2%.

Combined with programmable multi-stage programs and automatic data recording, the test report can be directly used for the certification audit of the supplier system.

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Filiform Corrosion Test

Filiform corrosion testing evaluates the resistance of coated metal materials against filament-shaped corrosion that develops beneath protective coatings.

  • Common standards:

 ISO 4623-1

 ISO 4623-2

ASTM D2803

Recommended Equipment

Filiform Corrosion Test Chamber

Filiform Corrosion Test Chamber

The LIB Filiform corrosion testing chamber precisely controls a high humidity environment (humidity 82% ±3%).

It enables early identification of coating adhesion and the risk of corrosion expansion beneath the film, thus preventing problems from being discovered only after reaching the end customers.

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SO₂ Salt Spray Corrosion Test

Evaluates material, coating, and component resistance to combined SO₂ and salt spray exposure, replicating industrial and coastal atmospheric conditions. Precise control of SO₂ concentration, temperature, and humidity alongside salt spray enables accurate simulation of real-world combined corrosive environments.

  • Common standards:

ISO 6988

DIN 50018

IEC 60068-2-42

Recommended Equipment

SO₂ Salt Spray Corrosion Test Chamber

​​​​​SO₂ Salt Spray Corrosion Test Chamber 

The LIB SO₂ salt fog combined test chamber can precisely control the SO₂ concentration, temperature and humidity simultaneously.

It truly reproduces the combined corrosive environment of industrial atmosphere and salt fog.

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Large-Scale Corrosion Test

Large assemblies and irregular-shaped parts often exceed the capacity of standard corrosion chambers, requiring disassembly or third-party testing.

  • Common standards:

Application-dependent

Recommended Equipment

Walk-In Corrosion Chamber

Walk-In Corrosion Chamber

The LIB industry walk-in corrosion chamber is custom-built to the customer's actual sample dimensions, with internal volumes ranging from a few cubic meters up to several dozen cubic meters.

It can run salt spray, cyclic, or composite corrosion programs in one chamber, letting manufacturers test full-size assemblies without disassembly or outsourcing to a third-party lab.

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FAQs On Salt Spray Testing

Q: How do I choose between a standard Salt Spray Chamber and a Cyclic Corrosion Chamber?

Standard Salt Spray Chambers expose samples to continuous salt fog—ideal for basic quality control and benchmark comparisons. Cyclic Corrosion Chambers alternate between salt spray, humidity, and dry cycles, providing a much closer simulation of real-world outdoor weather variations.

Q: Can LIB chambers be calibrated to comply with local ISO 17025 audit requirements?

Yes. All LIB chambers are designed and pre-tested to meet strict international calibration standards. We provide factory calibration certificates, and local 3rd-party calibration (e.g., SGS, TUV) can be easily performed on-site.

Q: What is the typical lead time for standard and customized chambers?

Standard models (Salt Spray / CASS) are usually available in stock or take 7-10 days. Customized or Walk-In corrosion chambers typically require 3-4 weeks depending on specific engineering requirements.

Q: How should the volume of the salt fog corrosion test chamber be estimated?
Based on the quantity and size of the test samples in a single batch, it is recommended to reserve a 20%-30% margin to accommodate future increases in test batch size. If you are unsure, please contact us and we will provide suggestions based on your sample situation. 
Q: Can LIB industry customize the corrosion testing chamber?

OK. LIB industry offers customized corrosion testing solutions based on sample size, testing methods, standard requirements, corrosive environments, and production capacity needs.

Q:What quality guarantees and services does LIB industry provide? 
LIB industry offers a 3-year warranty, lifetime maintenance support, technical assistance and engineering consulting services. It has 29 global agents and 4 overseas service centers, which can respond to after-sales demands promptly.

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