Briefly categorize the PH meter of salt spray test chamber
The salt spray test chamber can have different test conditions according to different standards and test methods. Neutral tests are already common. Now, as required by international standards, most companies will choose to do more severe acid tests. The acid test is also known as " "CASS test" scientific name "copper accelerated acetic acid test", the test requirements are: laboratory: 50 ℃ ± 1 ℃, b. Saturated air barrel: 63 ℃ ± 1 ℃, this article is for you to briefly describe the salt spray test chamber PH meter There are four classification methods for the PH meter of the salt spray test chamber, according to accuracy, display indication, component type, and use environment.
PH meters classified by accuracy can be divided into 0.2, 0.1, 0.02, 0.01, and 0.001. The smaller the number, the higher the accuracy. The pointer and digital types are classified according to the display instructions. The pointer pH meter is now It is rarely used, but the pointer instrument can display the continuous process of data change, so it is also used in titration analysis. It can be divided into transistor type, integrated circuit type and single-chip microcomputer type according to the type of component. Now it is more applied The microcomputer chip greatly reduces the volume of the instrument and the cost of a single machine; however, the development cost of the chip is very expensive. According to the use environment, it can be divided into pen PH meter, portable PH meter, laboratory PH meter and industrial PH meter.
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