The conductivity measurement of antistatic products should meet the following requirements:
1 The resistance of anti-static shoes and conductive shoes shall be measured according to the "Measurement Method for Resistance of Anti-static Rubber-soled Shoes and Conductive Rubber-soled Shoes" GB4386-84. When R≥1.5×105Ω, the measurement voltage is 500±25V; when R<1.5×105Ω, the measurement voltage is 100±5V, and the test electric power is not more than 3W.
2 The resistance of floor coverings such as anti-static floor and anti-static floor mat is measured with two φ60±2mm (weight 2±0.2kg, brass chrome plated) special electrodes, the measuring electrode distance is 1m, and the non-flexible ground can be pad under the electrode Conductive sponge (diameter φ60mm, thickness 5~6mm, volume resistivity 0.1~1Ω·m). The measuring instrument can be an insulation resistance tester, with a DC open-circuit voltage of 500V and a short-circuit current of 5mA.