S-150/ S-250/ S-750/ S-010/ S-016/S-020
LIB Industry
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The ASTM B117 Fog Corrosion Salt Spray Test Cabinet features a robust one-piece fiberglass reinforced plastic (FRP) chamber structure, which provides excellent resistance to corrosion, salt crystallization, and long-term chemical exposure. In addition to standard neutral salt spray testing, the ASTM B117 Fog Corrosion Salt Spray Test Cabinet supports multiple corrosion evaluation methods, including NSS, AASS, and CASS. These test modes allow users to assess general corrosion resistance, decorative and electroplated coating durability, and accelerated corrosion behavior under more aggressive chemical conditions.
Technical Advantages
1. Controlled and Uniform Salt Fog Output: The ASTM B117 Fog Corrosion Salt Spray Test Cabinet maintains a stable spray pressure of 83 kPa, delivering a salt fog deposition rate of 1–2 mL/80 cm²·h, fully compliant with ASTM B117 and ISO 9227 requirements. High-quality atomizing nozzles and an optimized spray tower ensure uniform fog distribution throughout the chamber, minimizing positional deviation between specimens and improving test repeatability across long-duration runs.
2. High-Accuracy Temperature and Environmental Stability: The cabinet operates at a controlled test temperature of 35 ± 2 °C, with temperature fluctuation limited to ±0.5 °C and deviation within ±2 °C during continuous operation. Integrated PT100 Class A temperature sensors provide high-resolution monitoring, ensuring stable environmental conditions and preventing false test results caused by thermal instability.
3. Reliable pH and Salt Solution Control: The system supports standard salt solution concentrations of 5% NaCl, with precise pH control for different test methods: pH 6.5–7.2 for NSS, and pH 3.1–3.3 for AASS/CASS. Stable solution preparaton and air preheating via a saturated barrel help maintain consistent fog chemistry throughout extended test cycles.
4. Leak-Proof and Corrosion-Resistant Chamber Structure: The test cabinet is constructed from one-piece molded fiberglass reinforced plastic, offering excellent resistance to salt corrosion and chemical attack. A water-sealed groove around the chamber lid effectively prevents salt fog leakage during operation. This design ensures long-term structural integrity and protects surrounding laboratory equipment from corrosive exposure.
5. Flexible Sample Capacity and Adjustable Mounting: Standard V-groove and round-rod specimen holders allow adjustable sample angles from 15° to 30°, meeting common standard requirements. The cabinet accommodates multiple specimen sizes and shapes simultaneously without shielding effects, supporting both small R&D samples and batch testing for production validation.
6. Programmable Operation and Data Traceability: The programmable controller supports up to 120 test programs, each with 100 programmable steps, enabling continuous, periodic, or cyclic corrosion testing. Key parameters—including temperature, spray duration, and test time—are recorded in real time, ensuring traceable and repeatable test documentation for audits and quality verification.
7. Built-In Safety Protection for Continuous Testing: The cabinet includes multiple safety protections such as water shortage protection, dry-burn protection for the humidifier, over-temperature protection, and leakage current protection. These safeguards allow stable long-term operation over hundreds or thousands of testing hours while reducing equipment failure risk.
8. Easy Maintenance with Reduced Downtime: Routine maintenance requirements are minimized through smooth interior surfaces and accessible spray components. Regular cleaning of nozzles and periodic replacement of saturated barrel water help maintain consistent performance, while corrosion-resistant materials significantly reduce wear and maintenance frequency over the cabinet's service life.
Key Parameters
| Model | S-150 | S-250 | S-750 | S-010 | S-016 | S-020 |
| Internal dimensions (mm) | 590*470*400 | 1000*640*500 | 1100*750*500 | 1000*1300*600 | 900*1600*720 | 1000*2000*800 |
| Overall dimensions (mm) | 1460*760*1140 | 1850*960*1350 | 1950*1030*1350 | 2000×1300×1600 | 2300×1300×1700 | 2700×1300×1900 |
| Interior Volume (L) | 110 | 320 | 410 | 780 | 1030 | 1600 |
| Temperature Range | Ambient ～ +60 ℃ | |||||
| Temperature Fluctuation | ± 0.5 ℃ | |||||
| Temperature Deviation | ± 2.0 ℃ | |||||
| Humidity Range | 95% ~ 98% RH | |||||
| Salt Fog Deposition | 1～2ml / 80cm2 · h | |||||
| Spray Type | Continuous / Periodic | |||||
| Salt Fog Collected | Fog collector and fog measure cylinder | |||||
| Air Preheating | Saturated air barrel | |||||
| Spraying System | Atomizer tower and Spray nozzles | |||||
| Controller | PID controller | |||||
| Safety Device | Humidifier Dry-combustion Protection; Over-temperature Protection; Over-current Protection; Water Shortage Protection; Earth leakage Protection | |||||
| Material | Glass fiber reinforced plastics | |||||
| Standard Configuration | 6 round bars and 5 V-shaped grooves | |||||
Typical Tests
The ASTM B117 Fog Corrosion Salt Spray Test Cabinet is commonly used for neutral salt spray (NSS) testing at 35 ± 2 °C using a 5% NaCl solution with a controlled fog deposition rate of 1–2 mL/80 cm²·h. Typical exposure durations range from 24 h and 96 h for basic screening to 240 h, 500 h, 720 h, and over 1000 h for long-term corrosion resistance evaluation. The test is widely applied to assess coating adhesion loss, blistering, white rust and red rust formation, and fastener corrosion performance, with samples mounted at 15°–30° according to standard practice. The chamber can also support cyclic corrosion testing by combining salt spray exposure with drying or elevated temperature aging phases, such as 8 h salt spray at 35 °C followed by 16 h drying at 40–50 °C, to better simulate real service environments. Although salt spray hours cannot be directly converted into outdoor exposure years, testing conducted in accordance with ASTM B117 and ISO 9227 provides a consistent and reliable basis for comparative corrosion resistance assessment and quality control.
Video Show
FAQs
Q 1: How to prevent salt spray leakage?
To prevent salt spray leakage, the cabinet uses a one-piece molded fiberglass structure that is strong and corrosion-resistant. A water-sealed groove around the chamber lid forms an effective seal; simply adding water to the groove during testing prevents salt fog from escaping, ensuring safe and clean operation.
Q 2: What maintenance work is required for salt spray chambers?
Routine maintenance includes regular cleaning of spray nozzles and the chamber interior to prevent salt crystallization, periodic replacement of water in the saturated barrel to maintain stable humidity, and cleaning dust from electrical components to ensure safe and reliable operation.
Q 3: How many hours of salt spray testing equal one year of outdoor exposure?
There is no universal conversion between salt spray test hours and real outdoor exposure. The equivalence depends on the applied standard and test conditions. Therefore, results should always be interpreted according to the specific ASTM or ISO standard used.
The ASTM B117 Fog Corrosion Salt Spray Test Cabinet features a robust one-piece fiberglass reinforced plastic (FRP) chamber structure, which provides excellent resistance to corrosion, salt crystallization, and long-term chemical exposure. In addition to standard neutral salt spray testing, the ASTM B117 Fog Corrosion Salt Spray Test Cabinet supports multiple corrosion evaluation methods, including NSS, AASS, and CASS. These test modes allow users to assess general corrosion resistance, decorative and electroplated coating durability, and accelerated corrosion behavior under more aggressive chemical conditions.
Technical Advantages
1. Controlled and Uniform Salt Fog Output: The ASTM B117 Fog Corrosion Salt Spray Test Cabinet maintains a stable spray pressure of 83 kPa, delivering a salt fog deposition rate of 1–2 mL/80 cm²·h, fully compliant with ASTM B117 and ISO 9227 requirements. High-quality atomizing nozzles and an optimized spray tower ensure uniform fog distribution throughout the chamber, minimizing positional deviation between specimens and improving test repeatability across long-duration runs.
2. High-Accuracy Temperature and Environmental Stability: The cabinet operates at a controlled test temperature of 35 ± 2 °C, with temperature fluctuation limited to ±0.5 °C and deviation within ±2 °C during continuous operation. Integrated PT100 Class A temperature sensors provide high-resolution monitoring, ensuring stable environmental conditions and preventing false test results caused by thermal instability.
3. Reliable pH and Salt Solution Control: The system supports standard salt solution concentrations of 5% NaCl, with precise pH control for different test methods: pH 6.5–7.2 for NSS, and pH 3.1–3.3 for AASS/CASS. Stable solution preparaton and air preheating via a saturated barrel help maintain consistent fog chemistry throughout extended test cycles.
4. Leak-Proof and Corrosion-Resistant Chamber Structure: The test cabinet is constructed from one-piece molded fiberglass reinforced plastic, offering excellent resistance to salt corrosion and chemical attack. A water-sealed groove around the chamber lid effectively prevents salt fog leakage during operation. This design ensures long-term structural integrity and protects surrounding laboratory equipment from corrosive exposure.
5. Flexible Sample Capacity and Adjustable Mounting: Standard V-groove and round-rod specimen holders allow adjustable sample angles from 15° to 30°, meeting common standard requirements. The cabinet accommodates multiple specimen sizes and shapes simultaneously without shielding effects, supporting both small R&D samples and batch testing for production validation.
6. Programmable Operation and Data Traceability: The programmable controller supports up to 120 test programs, each with 100 programmable steps, enabling continuous, periodic, or cyclic corrosion testing. Key parameters—including temperature, spray duration, and test time—are recorded in real time, ensuring traceable and repeatable test documentation for audits and quality verification.
7. Built-In Safety Protection for Continuous Testing: The cabinet includes multiple safety protections such as water shortage protection, dry-burn protection for the humidifier, over-temperature protection, and leakage current protection. These safeguards allow stable long-term operation over hundreds or thousands of testing hours while reducing equipment failure risk.
8. Easy Maintenance with Reduced Downtime: Routine maintenance requirements are minimized through smooth interior surfaces and accessible spray components. Regular cleaning of nozzles and periodic replacement of saturated barrel water help maintain consistent performance, while corrosion-resistant materials significantly reduce wear and maintenance frequency over the cabinet's service life.
Key Parameters
| Model | S-150 | S-250 | S-750 | S-010 | S-016 | S-020 |
| Internal dimensions (mm) | 590*470*400 | 1000*640*500 | 1100*750*500 | 1000*1300*600 | 900*1600*720 | 1000*2000*800 |
| Overall dimensions (mm) | 1460*760*1140 | 1850*960*1350 | 1950*1030*1350 | 2000×1300×1600 | 2300×1300×1700 | 2700×1300×1900 |
| Interior Volume (L) | 110 | 320 | 410 | 780 | 1030 | 1600 |
| Temperature Range | Ambient ～ +60 ℃ | |||||
| Temperature Fluctuation | ± 0.5 ℃ | |||||
| Temperature Deviation | ± 2.0 ℃ | |||||
| Humidity Range | 95% ~ 98% RH | |||||
| Salt Fog Deposition | 1～2ml / 80cm2 · h | |||||
| Spray Type | Continuous / Periodic | |||||
| Salt Fog Collected | Fog collector and fog measure cylinder | |||||
| Air Preheating | Saturated air barrel | |||||
| Spraying System | Atomizer tower and Spray nozzles | |||||
| Controller | PID controller | |||||
| Safety Device | Humidifier Dry-combustion Protection; Over-temperature Protection; Over-current Protection; Water Shortage Protection; Earth leakage Protection | |||||
| Material | Glass fiber reinforced plastics | |||||
| Standard Configuration | 6 round bars and 5 V-shaped grooves | |||||
Typical Tests
The ASTM B117 Fog Corrosion Salt Spray Test Cabinet is commonly used for neutral salt spray (NSS) testing at 35 ± 2 °C using a 5% NaCl solution with a controlled fog deposition rate of 1–2 mL/80 cm²·h. Typical exposure durations range from 24 h and 96 h for basic screening to 240 h, 500 h, 720 h, and over 1000 h for long-term corrosion resistance evaluation. The test is widely applied to assess coating adhesion loss, blistering, white rust and red rust formation, and fastener corrosion performance, with samples mounted at 15°–30° according to standard practice. The chamber can also support cyclic corrosion testing by combining salt spray exposure with drying or elevated temperature aging phases, such as 8 h salt spray at 35 °C followed by 16 h drying at 40–50 °C, to better simulate real service environments. Although salt spray hours cannot be directly converted into outdoor exposure years, testing conducted in accordance with ASTM B117 and ISO 9227 provides a consistent and reliable basis for comparative corrosion resistance assessment and quality control.
Video Show
FAQs
Q 1: How to prevent salt spray leakage?
To prevent salt spray leakage, the cabinet uses a one-piece molded fiberglass structure that is strong and corrosion-resistant. A water-sealed groove around the chamber lid forms an effective seal; simply adding water to the groove during testing prevents salt fog from escaping, ensuring safe and clean operation.
Q 2: What maintenance work is required for salt spray chambers?
Routine maintenance includes regular cleaning of spray nozzles and the chamber interior to prevent salt crystallization, periodic replacement of water in the saturated barrel to maintain stable humidity, and cleaning dust from electrical components to ensure safe and reliable operation.
Q 3: How many hours of salt spray testing equal one year of outdoor exposure?
There is no universal conversion between salt spray test hours and real outdoor exposure. The equivalence depends on the applied standard and test conditions. Therefore, results should always be interpreted according to the specific ASTM or ISO standard used.
