In environments such as clean rooms, there are usually high grade standards for dust particles. The general cleanroom dust particle grade standard we refer to is the fixed number of particles that are allowed to remain in the air within a certain space and time period. It is mainly used in places such as medicine, food, electronics, aviation, and semiconductors that require high cleanliness. Let's take a look together at what the dust particle grade standards for cleanrooms are.
According to the international standard ISO14644-1:2015, cleanrooms are classified into the following grades based on the concentration of dust particles:
Grade 1: The countable particles in each cubic meter of air are ≤10
Grade 2: The countable particles in each cubic meter of air are ≤100
Level 3: The countable particles in each cubic meter of air are ≤1000
Grade 4: The countable particles in each cubic meter of air are ≤ 10,000
Grade 5: The countable particles in each cubic meter of air are ≤ 100,000
Grade 6: The countable particles in each cubic meter of air are ≤ 1,000,000
Grade 7: Countable particles per cubic meter of air ≤ 10,000,000
Grade 8: The countable particles in each cubic meter of air are ≤ 100,000,000
Grade 9: Countable particles per cubic meter of air ≤ 1,000,000,000
To ensure the accuracy of cleanroom testing, the dust particle grade should be correctly selected based on the product requirements and the conditions of the testing environment.
The dust particle grades in cleanrooms are divided into 9 standards, and each standard represents a different environmental grade. Therefore, when we are detecting the dust particle concentration in a certain environment, in addition to choosing a dust particle counter that can meet the detection requirements, we also need to select a grade standard based on the environment.
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