Sinuo Testing Equipment Co. , Limited
Sinuo Testing Equipment Co., Limited
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ISO 16750-4 Compound Salt Spray Test System for Electronic Equipment
Complied Standards & Clauses
It can meet the national standard ISO 16750-4: 2006 Road vehicles Environmental conditions and tests for electrical and electronic equipment Part 4: Climatic loads clause 5.5 salt spray test.
Product Overview
Corrosion of protected and unprotected metallic materials is influenced by many environmental factors, which mainly depend on the type of metallic material and the type of environment. It is impossible to design a laboratory accelerated corrosion test chamber that includes all environmental factors that affect corrosion resistance. Therefore, the laboratory test is designed by simulating the factors that play a major role in the corrosion of metallic materials. This equipment is designed to simulate and increase the effects of the environment on metallic materials exposed to an outdoor atmosphere that is contaminated with salt and can accelerate corrosion. The equipment includes a test method for cyclically exposing the sample to salt spray, dry, hot and humid environments. This equipment test is a comparative test, and the test results cannot predict the long-term results of the corrosion resistance of the same metal material used under this environmental condition. However, this method can still provide valuable information on the relative performance of materials exposed to salt pollution like the test conditions. Compared with traditional accelerated corrosion tests, such as neutral salt spray test (NSS), acetic acid salt spray test (AASS), and copper accelerated acetic acid salt spray test (CASS), the biggest advantage of this equipment test is that it can better Reproduces corrosion that occurs outdoors in salt-contaminated environments.
1.3 The equipment has temperature-humidity-heat alternating salt spray compound test chamber with temperature and humidity adjustment function is used to test various performance indicators and quality management of accessories under alternating compound conditions such as high temperature, humidity, dryness, and salt spray.
Technical Parameters
| Product Name | Compound Salt Spray Test Chamber |
| Product model | SN8810C-1m³ |
| Nominal internal volume | 1m³ Note: Does not include the volume of the top sloping roof |
| Effective size of inner box (mm) | 1000×1000×1000 W×D×H Note: The height of the top slope is 600mm |
| External space (mm) | About 1600×2400×2000 W×D×H |
| Weight | About 500kg |
| Bearing capacity | About 80KG |
| Temperature range of test chamber | 20～70℃ continuously adjustable |
| Temperature range of saturation tank | RT+5℃～70℃ |
| Range of humidity | 30%R.H～98%R.H (as shown in the figure) |
| Salt mist deposition amount | 1～2ml/h/80cm2 (at least 16 hours of collection, take the average value) Note: The monitoring point of the spray volume is located in the test area close to the surface of the sample |
| Spray pressure | 70～170Kpa |
| Spray method | Three modes of continuous spray, cycle spray and program spray can be adjusted by yourself |
| PH value of liquid medicine | Neutral test 6.5～7.2 Acid test 3.0～3.3 |
| Test conditions | A. Commonly used alternating salt spray test conditions: ambient temperature of 35°C, saturated barrel temperature of 47°C, spray test time of 5% salt water concentration from 1min to 999h can be set arbitrarily, and then in the damp heat test at a temperature of 40°C±2°C, relative humidity 93%RH±3%RH, the test time can be set arbitrarily from 1min to 999h; the cycle can be set arbitrarily from 1 to 999 times. Then, let it stand for 1min to 999h under standard environmental conditions with a temperature of 23°C±2°C and a relative humidity of 50%RH±5%RH, which can be set arbitrarily.
B. Dry and wet compound salt spray test conditions: at an ambient temperature of 35°C, a saturated barrel temperature of 47°C, and a spray test time of 5% salt water concentration from 1min to 999h, which can be set arbitrarily; dry under the condition that the relative humidity is equal to or lower than 30%RH For the test, the test time can be set arbitrarily from 1min to 999h; in the humid and hot environment with a relative humidity greater than 95%RH, the test time can be set arbitrarily from 1min to 999h; then return to the first step of the salt spray test; the cycle can be set arbitrarily from 1 to 999 times.
C. NSS salt spray test, AASS acetic acid salt spray test, CASS copper accelerated acetic acid salt spray test, damp heat test, drying test, standard large climate environment test conditions or other combined test conditions can be carried out independently. |
| Control accuracy | Temperature resolution: 0.1°C Humidity resolution: 0.1%R.H Temperature deviation: ±2.0℃ Humidity deviation: ≤+2-3%R.H when ≥75%RH, humidity deviation: ≤±5%R.H when <75%RH Temperature fluctuation: ±1℃ Humidity fluctuation: ±3%R.H Note: The temperature uniformity and deviation are measured under the conditions of ambient temperature +25°C, relative humidity ≤85% RH, and no sample. |
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