when the anti-static floor is grounded or connected to any lower potential point, the charge can be dissipated, characterized by a resistance between 10 to the fifth power and 10 to the ninth power of ohms. Therefore, in the “GB50174-2008 Electronic Information system room design Code” for the installation of anti-static floor construction design has made a clear specification: anti-static floor or ground surface resistance or volume resistance should be 2.5×10 power 4 ~1.0×10 power 9 ohms.

According to different standards, the limits are also different, ESD standard is 1 times 10 to the power of 6-9, the national standard 10694 is point-to-point resistance is 1 times 10 to the power of 4-10, the system resistance is 1 times 10 to the power of 4-9. The power of 4-6 is the electrostatic conduction type, and the power of 6-9 is the dissipative type.

Generally, the resistance of the anti-static floor can be between 4-9 square meters, and the subdivision of 4-6 power is the electrostatic conductive floor, and 6-9 is the electrostatic dissociative floor. Below the 4th power 0.00 there is a risk of electric shock.