When you're qualifying metals, electronic components, automotive parts, fire safety devices, or plastic products for harsh environments that cycle between wet, dry, hot, and humid conditions, a basic salt spray test isn't enough.
LIB's Cyclic Salt Spray Test Chamber integrates continuous salt fog, high-humidity exposure, programmable temperature cycling, and drying phases into one fully automated system. It delivers accelerated, field-relevant corrosion data that accurately simulates real environmental stress.
【Your Comprehensive Corrosion Testing Platform】
Comprehensive Standards Compliance
LIB's Cyclic Salt Spray Test Chamber meets every major global standards, so your results are universally recognized and auditable:
British: EN 60068-2-52, ISO 9227, ISO 11997, BS 5466, and so on.
German: DIN 50021, VG 95332/4, VG 95210/2, and so on.
American: ASTM B117, ASTM D5894, ASTM G85, ASTM B368, SAE J2334, and so on.
French: NFX 41002, NFA 91-101, PNX 14-002, and so on.
Japanese: JIS Z 2371, JIS H 8502, JASCO M 6009, and so on.
Company standards: VW, Ford, Jaguar, Land Rover, G.M., Toyota, Honda, Nissan, Renault, Peugeot, Volvo, VW, Audi, BMW...
Three Main Test Choices Guidelines
ISO 9227 specifies three main types of salt spray corrosion tests, each designed for different materials and coating systems:
Neutral Salt Spray (NSS): This is the most common method, using a 5% NaCl solution with a neutral pH between 6.5 and 7.2. It's used to evaluate the general corrosion resistance of metals, coatings and so on.
Acetic Acid Salt Spray (AASS): This method adds glacial acetic acid to the 5% salt solution, lowering the pH to between 3.1 and 3.3. It is mainly used for testing decorative coatings.
Copper-Accelerated Acetic Acid Salt Spray (CASS): This is a more advanced version of AASS, where CuCl₂ is added at a concentration of 0.26 g/L (± 0.02 g/L). It is typically used for highly corrosion-resistant decorative coatings to simulate more severe environments.
|
Test Type |
Solution Composition |
pH Range |
|
Neutral Salt Spray (NSS) |
5% NaCl |
6.5–7.2 |
|
Acetic Acid Salt Spray (AASS) |
5% NaCl + Acetic Acid |
3.1–3.3 |
|
Copper-Accelerated Acetic Acid Salt Spray (CASS) |
5% NaCl + Acetic Acid + CuCl₂ |
3.1–3.3 |
Core Cyclic Salt Spray Testing Control
Like LIB's basic Salt Spray Test Chamber, the cyclic model delivers:
Uniform Salt Fog: A 5 % NaCl solution, prepared per the standard 5 ± 1 % mass ratio at pH 6.5–7.2, is atomized through quartz nozzles at 83 kPa to achieve a deposition rate of 1–2 mL/80 cm²/hr. The salt water tank is equipped with a stirring function to ensure the consistency of the concentration.
Preheated Air Saturator: A saturated barrel maintains the fog generator at 47 ± 1 °C (ASTM G85), ensuring consistent fog density.
Precise Temperature Control: The exposure zone holds at 35 ± 2 °C (95 ± 3 °F) (ASTM G85) for cyclic tests.
By integrating these core features, both chambers satisfy standards like ASTM B117 requirements for basic salt spray and provide a stable foundation for more complex cycles.
Realistic, Multi‑Phase Corrosion Cycles
LIB's cyclic chamber goes beyond static fog tests by alternating between three distinct modes:
Salt Spray Mode
Sprays a fine mist of 5 % saltwater at a steady pace (about 1–2 mL over every 80 cm² each hour), mimicking how salt spray wears down surfaces near oceans or on roads treated with de‑icing salt.
Humidity Mode
Keeps the air very damp-anywhere from 30 % up to 98 % humidity-to recreate the constant moisture of rainy or foggy climates and see how coatings hold up in soggy conditions.
Temperature Mode
Cycles air temperature between 10 °C and 90 °C, with fluctuation controlled within ±5 °C and deviation within ±2 °C, helping simulate real-world thermal changes that affect coating durability.
Drying Mode
Blows warm, dry air to evaporate moisture and let salt crystals form, stressing the coating by repeating wet‑dry cycles so you can spot cracks or peeling that only show up when things dry out.
【Engineering Excellence & Usability】
Advanced Sensor Suite
PT‑100 Class A Temperature & Humidity Sensors: Guarantee ± 0.5 °C temperature stability and ± 2 % RH humidity control, with self‑diagnostic routines before each cycle.
Optimized Structural Design
Dual Hanging Spray Towers: Provide even fog coverage across the work zone, eliminating dead spots common in single‑tower systems.
External Salt Water Tank: Facilitates maintenance and reduces in‑chamber clutter-important for larger volumes.
Integrated Systems
Salt Spray System: Single‑purpose design in basic chambers vs. multi‑system integration (salt spray, air circulation, refrigeration, humidity, water circulation) in cyclic models-ensuring rapid phase transitions without manual intervention.
Door Operation: pneumatic‑only in the cyclic chamber for smooth, hands‑free access to heavy or tall fixtures.
User‑Focused Controls
PID Color Touchscreen: Multilingual interface, remote access, and programmable alarms prevent accidental parameter changes.
Energy & Water Efficiency: Closed‑loop water recovery reclaims up to 80 % condensate, while optimized refrigeration minimizes power draw.
【Why LIB's Cyclic Chamber Is Your Corrosion Test Solution】
- Real‑World Accuracy: Cycles that mimic wet–dry transitions and pollutant exposure deliver predictive, field‑relevant data.
- Unmatched Flexibility: From basic salt spray to multi‑phase tests, one chamber covers every protocol.
- Operational Simplicity: Automated phase switching, intuitive touchscreen programming, and remote monitoring keep labs productive.
- Long‑Term Reliability: Robust glass fiber reinforced plastics interiors and comprehensive safety interlocks protect samples and equipment.
- Global Support: Three‑year warranty, lifetime technical assistance, and 24/7 multilingual service ensure your lab never misses a cycle.
Elevate your corrosion testing to match the complexity of real‑world conditions. Contact LIB Industry today to configure a Cyclic Salt Spray Test Chamber tailored to your exact research and production needs.
