GB/T 15662-1995 specifies the test method for the volume resistivity of conductive and anti-static plastics. It is based on the principle of electricity and explicitly uses high resistance meters and other equipment for measurement. Detailed sample preparation, including shape, size and surface preparation requirements, to ensure test accuracy. Standardize the test environment, limit the temperature and Humidity, and explain the test process, such as electrode installation, sample placement, voltage application and resistance value reading. Through this standard, the volume resistivity of related plastics can be accurately measured, providing key performance data for the application of plastics in electronic, chemical and other fields that require static control, and assisting Product Research & Development and mass control.