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Test Modes & Standards
- NSS: Neutral Salt Spray Test.
- AASS: Acetic Acid Salt Spray Test.
- Conformity Standards: ASTM B117, ISO 9227, JIS Z2371, DIN 50021
Hardware Highlights
- Box material: Uses P.V.C or P.P sheets (acid and alkali resistant, anti-aging, high-temperature resistant).
- Precision nozzle: Utilizes specially designed glass nozzles (no crystalline blockage, uniform spray diffusion).
- Top cover design: V-shaped or arc-shaped top cover (prevents condensate water from dripping onto the test sample).
- Sealing method: Water-sealed structure.
- Heating method: Steam heating method, with fast heating and uniform distribution.
Model
| TA-SS | ||||||
60 | 90 | 120 | 160 | ||||
Lab temp | Salt water test 35℃±1℃，corrosion resistance test 50℃±1℃ | ||||||
Saturation bucket temp | Salt water test 47℃±1℃，corrosion resistance test 63℃±1℃ | ||||||
PH value | Salt water test 6.5~7.2，corrosion resistance test 3.0~3.2 | ||||||
Temp deviation | ±2℃ | ||||||
Inner size（W*H*Dcm）
| 60x40x45 | 90x50x60 | 120x50x100 | 160x50x100 | |||
Outer size（W*H*Dcm）
| 113x107x63 | 146x128x91 | 190x140x120 | 224x150x160 | |||
Water tank capacity (L) | 15 | 25 | 40 | 60 | |||
Spray amount (ml/h) | 1.0~2.0 | ||||||
Mist removal method | Air compression | ||||||
Protector | Water level controller, 3 status warning lights, 2 sets of over temperature protection switches | ||||||
Standard accessories | One set of storage sticks, 500g bottles of NaCl reagent, one saline mixing bucket, one 80cm ² standard collection cup, one 50ml measuring cylinder, and one detailed operating manual | ||||||
- Surface treatment: Electroplating, anodizing, coating spraying.
- Automotive parts: Fasteners, lamp housings, wheels.
- Electrical and electronic products: Circuit boards, enclosures, connectors.
- Hardware accessories: Locks, faucets, kitchen and bathroom supplies.
Can the salt spray testing machine conduct the cyclic corrosion test (CCT)?
If your purpose is merely to meet basic production compliance requirements or conduct simple metal coating quality inspections, the standard salt spray testing machine is the most cost-effective option available. However, if you are involved in automotive, aerospace or high-performance coating research and development and need to simulate the corrosive environment of alternating dry and wet conditions found in the real world, then a cyclic corrosion test chamber (CCT) is your ideal choice.
How to calibrate the salt spray deposition rate？
- Tools for preparation: Use a standard funnel with a diameter of 100mm (with a collection area of approximately 80cm²) and connect it to a graduated cylinder.
- Placement: Place at least two collectors in the box: one close to the nozzle and one far from the nozzle. Ensure there is no sample obstruction above and no condensate dripping from the top cover is collected.
- Test duration: Conduct continuous spray tests for at least 16 hours (minimum of no less than 8 hours) to obtain accurate average values.
- Criteria for judgment: The volume of salt solution collected per hour should be between 1.0 and 2.0 ml / 80cm² / h.
- How to adjust: If the sedimentation rate is too low: Lower the top of the spray tower (diffusion cone) or slightly increase the intake pressure.
What are the differences between the salt used for testing and industrial salt?
- Purity requirement: The standard salt spray test (such as ASTM B117) stipulates that the purity of sodium chloride (NaCl) must be ≥ 99.5%.
- Issues with table salt: Contains iodine (which interferes with the chemical reaction and affects the test accuracy) and anti-caking agents (which can clog the nozzle).
- Problems with common industrial salt: Contains heavy metal impurities (such as copper and nickel), which accelerate corrosion and cause the test results to deviate from the standard.
