1. Errors caused by the instability of the test sample

The salt spray test takes a certain amount of time. If the test sample is unstable and changes occur during the test time, even the salt spray test chamber with good performance cannot obtain the correct test data.

2. Errors caused by the environment and operators

Due to errors caused by inconsistent actual environmental conditions and specified conditions, the main environmental influence factors are temperature, power supply voltage and electromagnetic interference.

3. Instrument error

Because of the imperfections in design, manufacture, and verification, and the deterioration of the components of the test box during use, the wear and tear of mechanical parts, fatigue, etc. At the same time, various auxiliary equipment or accessories may cause errors.

4. Errors caused by the test method

The method of operation refers to a set of theoretical applications and practical operations involved in the implementation of the test based on the inherent principles. When the equipment is tested according to the theory is not strict, the operation is not reasonable, and the calculation results using the approximate formula or the approximate value of the test results will also cause test error.