Reference substances can be classified according to the properties to which they are valued. According to the provisions of the Measures for the management o...

What is the reference material? How is the national standard material defined? Can't distinguish standard material, standard product and reference product? W...

In order to ensure that the analytical test results have a certain degree of accuracy, and have comparability and consistency, it is often necessary to calibra...

What is the difference between standard titrations and standard solutions? The following is a small edition of Bolinda ® to introduce you.

Since the beginning of this year, China's electronic information industry has maintained a steady development trend in a complex external environment, the gro...

For a long time, Shenzhen has been an important gathering area of the domestic integrated circuit industry, and has long been in the leading position of the d...

Downstream PCB net profit +29%, revenue growth at a moderate rate