How to measure the high and low temperature test chamber

Metrology is a method and means for people to understand and transform nature through theoretical practice. It is an important technical foundation that is indispensable in the development of science, technology, economy and society.

The high and low temperature test chamber provides high temperature, low temperature, high humidity and low humidity environments to detect changes in materials and the degree of strength reduction of rubber, plastics, electronic components, etc. after testing. It can also simulate the container environment to detect the fading and shrinkage of rubber and plastics under high temperature and high humidity. It is used to specifically test the heat resistance, cold resistance, dryness resistance and moisture resistance of various materials.

Temperature and humidity deviation, temperature and humidity fluctuation, temperature and humidity uniformity

Uniformity: The difference between the test points (temperature and humidity) at a certain moment in the working space of the environmental test equipment under a stable state. (Simply defined as: the temperature difference between points, which is a spatial concept)

Fluctuation: The change of the parameters of the center point of the working space of the environmental test equipment over time when it is in a stable state. (Simply defined as: the beating value of a point, which is a concept of time)

Deviation: The upper and lower deviations of the measured maximum and minimum values ​​at each measuring point in the working space of the equipment when it is in a stable state from the standard value. (Simply defined as: the difference between the measured maximum and minimum values)

The measurement is carried out under no-load conditions. If there is a load, the load conditions should be stated in the certificate;

The dosage form humidity point should generally be selected from the upper limit, lower limit and center point of the equipment use range. You can also select the actual commonly used temperature and humidity points according to user needs;

Location of metering points: When the equipment volume is less than 2 cubic meters, there are 9 temperature points and 3 humidity points; when the equipment volume is greater than 2 cubic meters, there are 15 temperature points and 4 humidity points.