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Product Overview
Corrosion can significantly reduce the service life of metal components, coatings, connectors, and industrial products exposed to harsh environments. Traditional salt spray testing provides useful corrosion data, but many real-world conditions involve alternating cycles of salt exposure, drying, and humidity.
The ITM-LAB YWX/T Series Compound Salt Spray Test Chamber is designed for advanced cyclic corrosion testing (CCT) by combining salt spray, drying, and humidity testing in a single automated system. Compliant with ASTM B117, ASTM G85, ISO 9227, IEC 60068-2-11, and JIS Z 2371, it helps manufacturers evaluate corrosion resistance more accurately for automotive, electronics, aerospace, marine, and industrial applications.
Key Features
Realistic Cyclic Corrosion Simulation
Unlike conventional salt spray chambers that operate under continuous fog conditions, the YWX/T Series performs complete corrosion cycles including:
- Salt spray exposure
- Drying cycles
- Humidity conditioning
- Automatic sequence switching
This approach provides a closer representation of real service environments and delivers more meaningful corrosion performance data.
Fully Automated Test Programs
The chamber automatically executes programmed corrosion cycles without manual intervention.
Typical cycle:
Salt Spray
↓
Drying
↓
Humidity Exposure
↓
Repeat
Users can create customized programs based on customer specifications, automotive standards, military requirements, or internal validation procedures.
Integrated Temperature and Humidity Control
The environmental control system combines salt spray, temperature, and humidity testing within a single chamber.
Temperature Range:
10°C to 80°C
Humidity Range:
20% RH to 100% RH
Suitable for:
- NSS Testing
- AASS Testing
- CASS Testing
- Cyclic Corrosion Testing (CCT)
Fast Environmental Switching
The chamber is engineered for efficient transitions between different testing conditions.
| Transition |
Time |
| RT → 85°C |
≤60 min |
| RT → 0°C |
≤30 min |
| Salt Spray → Drying |
≤30 min |
| Drying → Humidity |
≤15 min |
| Humidity → Salt Spray |
≤30 min |
Uniform Salt Fog Distribution
A precision atomization system and specially designed airflow structure help ensure:
- Stable salt deposition rates
- Uniform fog distribution
- Reduced nozzle blockage
- Consistent testing results
Advanced Touchscreen Controller
The programmable control system includes:
- Up to 120 programmable test profiles
- Multi-step corrosion cycle programming
- Real-time monitoring
- Data logging and export
- Power failure recovery
- RS-232 communication
Built-in memory allows independent data storage without requiring an external recorder.
Corrosion Test Methods
Neutral Salt Spray Test (NSS)
Used for evaluating corrosion resistance of metals, coatings, and plated components.
Typical Conditions:
- Chamber Temperature: 35°C ±1°C
- Salt Concentration: 5% NaCl
- pH Value: 6.5–7.2
Acetic Acid Salt Spray Test (AASS)
Suitable for decorative coatings and electroplated products.
Typical Conditions:
- Chamber Temperature: 35°C ±1°C
- pH Value: 3.0–3.3
Copper Accelerated Acetic Acid Salt Spray Test (CASS)
Designed for accelerated corrosion testing of high-performance coatings.
Typical Conditions:
- Chamber Temperature: 50°C
- Saturator Temperature: 63°C
- Copper Chloride Solution
Cyclic Corrosion Testing (CCT)
Combines:
- Salt spray
- Drying
- Humidity exposure
to provide a more realistic assessment of long-term corrosion resistance.
Typical Applications
Automotive Components
- Fasteners
- Brake system parts
- Chassis components
- EV battery enclosures
- Electrical connectors
Surface Coatings and Plating
- Zinc plating
- Nickel plating
- Chrome plating
- Powder coating
- E-coating
- Anodized aluminum
Electronics and Electrical Products
- PCB assemblies
- Connectors
- Communication equipment
- Industrial control systems
Aerospace and Defense
- Structural hardware
- Protective coatings
- Electronic assemblies
- Exterior components
Compound Salt Spray vs Traditional Salt Spray Testing
| Feature |
Traditional Salt Spray |
Compound Salt Spray |
| Continuous Salt Fog |
✓ |
✓ |
| Dry Cycle |
✗ |
✓ |
| Humidity Cycle |
✗ |
✓ |
| Cyclic Corrosion Testing |
✗ |
✓ |
| Real-World Simulation |
Moderate |
Excellent |
| Automotive Standards |
Limited |
Preferred |
For many automotive and industrial applications, cyclic corrosion testing provides a better correlation to real-world service conditions than conventional salt spray testing.
Supported Test Standards
The YWX/T Series complies with major international corrosion testing standards, including:
- ASTM B117 – Standard Practice for Operating Salt Spray (Fog) Apparatus
- ASTM G85 – Modified Salt Spray (Fog) Testing
- ISO 9227 – Corrosion Tests in Artificial Atmospheres
- ISO 7253 – Determination of Resistance to Neutral Salt Spray
- IEC 60068-2-11 – Environmental Testing – Salt Mist
- JIS Z 2371 – Salt Spray Testing Methods
- DIN 50021 – Salt Spray Corrosion Testing
Available Chamber Sizes
The YWX/T Series can be customized according to testing requirements.
Available configurations include:
- Laboratory models
- Production testing systems
- Large-capacity customized chambers
Custom chamber dimensions and volumes are available upon request.
Why Choose ITM-LAB
-
Customized chamber configurations for different testing requirements
-
Stable temperature, humidity, and salt spray control
-
Reliable cyclic corrosion testing performance
-
Compliance with international standards
-
Global technical support and after-sales service
FAQ
What is a compound salt spray test chamber?
A compound salt spray test chamber combines salt spray, drying, and humidity testing in one system to perform cyclic corrosion testing that better reflects real-world environmental conditions.
What is cyclic corrosion testing (CCT)?
Cyclic corrosion testing alternates between salt spray, drying, and humidity phases to accelerate corrosion and provide more realistic performance data.
What is the difference between ASTM B117 and ASTM G85?
ASTM B117 uses continuous salt fog exposure, while ASTM G85 introduces cyclic conditions that better simulate actual service environments.
Why is cyclic corrosion testing important for automotive components?
Many automotive manufacturers prefer cyclic corrosion testing because it provides a more accurate prediction of long-term corrosion performance.
Can the chamber be customized?
Yes. Chamber size, control systems, testing programs, and additional features can be customized according to specific application requirements.
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