It is well-known that people evaluating the worth of a manufactured good is not just limited to evaluating its function and performance. We must know more about below:

1)At what level can performance be maintained, and for how long? In other words, what is the product failure rate?

2) How does performance change in response to the severity of the environment actually encountered?

That is to say, a crucial part of the worth of a product or item is lies in the quality.

But what if when a quality defect occurs after products have been put on the market?

If so, the cost is not limited to the significant amount that can be lost in the damages. The greatest loss is in the loss of a company reputation. Therefore, to avoid such damages, quality must be confirmed before a product is put on the market.

Environmental testing not only confirms quality through such tests as simulation testing and product life testing, it also can truly be called the indispensable prerequisite to quality assurance.

Environmental testing can be broadly categorized into below three types:

1).  Climatic (natural) environmental testing, Climatic-related environmental testing deals with environmental factors such as           pressure, humidity, and temperature,

2).  Mechanical (causal) environmental testing, it treats such factors as shock and vibration.

3).  Combined environmental testing: a combination of the above two