Standards and Classifications of Salt Spray Test Chambers: LIB's Complete Solution

The salt spray test chamber is mainly used to simulate a salt spray environment to test the corrosion resistance of products or metal materials. It creates a salt spray environment in a closed space through artificial methods to accelerate the corrosion process, thereby evaluating the possible corrosion effects of materials or products in the natural environment within a relatively short period of time.

standards and classifications of salt spray test chambers libs complete solution

From automotive components to electronics, their use is vital in simulating harsh environments over an accelerated period. Various international standards have defined test conditions for salt spray and cyclic corrosion testing, and LIB has developed a full range of chambers to meet these global requirements.

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Several major standards are used worldwide to regulate salt spray testing. Despite slight variations, most of these standards share common principles and test conditions. LIB's salt spray test chambers are compatible with all of them.

Common Salt Spray Test Standards

ASTM B117 (USA)
The most widely recognized standard. It specifies the method for a continuous neutral salt spray test, using a 5% NaCl solution with a pH of 6.5–7.2, chamber temperature at 35°C, and continuous fog.

ISO 9227 (International / UK)
Defines three types of salt spray tests:

NSS (Neutral Salt Spray)

AASS (Acetic Acid Salt Spray) – adds acetic acid to accelerate corrosion.

CASS (Copper-Accelerated Acetic Acid Salt Spray) – includes copper chloride for faster oxidation.

EN 60068-2-52 (UK / EU)
A cyclic test involving salt spray, humidity, and dry phases.

Spray: 5% salt at 15–35°C

Humidity: 93%RH at 40°C

Severity I: 2 hours spray + 7 days humidity (4 cycles)

Severity II: 2 hours spray + 20–22 hours humidity (3 cycles)

DIN 50021 (Germany)
Covers similar procedures to ASTM B117 with localized terminology and setup guidelines.

ASTM G85 (USA)
Introduces modified salt spray tests, including:

Annex A1: Acetic Acid Test

Annex A2: CASS Test

Annex A3: Seawater Acidified Test

Annex A4: SO₂-injection Test

Annex A5: Cyclic Prohesion Test

SAE J2334 (Automotive Industry, USA)
Specifies a corrosion test simulating real-world road exposure: includes salt application, humidity, and dry cycles

Others
French, Japanese, and many corporate standards also define procedures. However, all of them can be addressed using one or more of LIB's test chamber types.

To meet this diversity of standards and test demands, LIB offers three major series of salt spray test chambers. Each is specialized for different applications and test modes.

Classify	Type 1	Type 2	Type 3
Name	Salt Spray Test Chamber	Salt Cyclic Corrosion Test Chamber	Salt and SO₂ Corrosion Test Chamber
Model	S-150, S-250, S-750	SC-010, SC-016, SC-020	SSC-010, SSC-016, SSC-020
Test Standards	ASTM B117, ISO 9227 (NSS, AASS, CASS)	ASTM B117, ISO 9227, IEC 60068-2-52	ASTM B117, ISO 9227, IEC 60068-2-52, ASTM G85
Function	Salt fog spray; Temp (Ambient ~ +60℃)	Salt fog spray; Temp (+10℃ ~ +90℃); Humid (30% ~ 98% RH)	Salt fog spray; Temp (+10℃ ~ +90℃); Humid (30% ~ 98% RH); SO₂ gas

Designed for continuous salt spray tests such as ASTM B117 and ISO 9227 NSS. These Salt Spray Test Chamber models offer precise control of fog output, temperature, and solution concentration.

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Ideal for:

Coating quality verification

Metal anti-corrosion capability tests

Comparison of different surface treatments

Features:

Transparent lid for visual observation

Corrosion-resistant construction

Reliable fog distribution system

Optional pH monitor and air saturator

Built for cyclic corrosion testing, complying with ISO 9227 (CASS/NASS) and IEC 60068-2-52. These salt fog cyclic corrosion test chamber simulate real environmental conditions including fog, humidity, and drying cycles.

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Applications:

Automotive parts (e.g., fasteners, panels)

Marine hardware

Electronic housings

Key Functions:

Wide temperature & humidity range

Multi-phase testing: spray, dry, wet

For advanced corrosion testing with sulfur dioxide gas injection, salt fog and SO2 corrosion chamber is ideal for ASTM G85 Annex A4 and automotive industry requirements like SAE J2334.

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Test Capabilities:

Salt spray + SO₂ gas exposure

Simulate acid rain or industrial exhaust impact

Long-duration accelerated tests

Advanced Controls:

SO₂ gas injection system

Gas concentration monitoring

Independent temperature/humidity regulation

Standards-compliant: LIB chambers fully comply with global testing standards.

Customization available: Test parameters, chamber volume, and functions can be customized.

Professional support: Installation, training, and technical consulting offered globally.

Durability & Accuracy: Built with anti-corrosive materials and intelligent controllers for long-term precision.

No matter which salt spray standard your industry adheres to-ASTM B117, ISO 9227, IEC 60068-2-52, or others-LIB has a tailored solution. From basic continuous salt fog testing to complex cyclic or SO₂-enhanced tests, LIB offers reliable, globally compliant salt spray test chambers that ensure your products withstand the harshest corrosion conditions.

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