Safe surface voltage of light fuel oil in tank filling operations Jurisdiction China Year 1988 Published in Chinese Original/other title [Chinese] Qingzhi youpin zhuangyou anquan youmian dianweizhi Source In: Reference Collection of National Occupational Safety and Health Standards 1985-1986, China Standards Publishing Co., Beijing, China, Apr. 1988, p.623-631. Price: CNY 11.00 (whole volume). Serial number GB 6951-86 Descriptors [Primary] China, fuel oils, static electricity measurement, voltage measurement [Secondary] comment on standard, standard, static electricity Subject category Electrical safety Abstract This standard (effective 1 Sep. 1987) defines the surface electric potential of light fuel oils to be the potential difference between earth and oil surface, the potential difference being due to the accumulation of static charges during transportation. The safety limit is set at 12,000V. The method of measuring the surface electric potential of oil in oil tanks during tank-filling operations is described. List of references concerning conditions for surface electric discharge and ignition of fuel. Discussion of the determination of surface electric potential in the United States, Japan and China. CIS No. 93-35 Database ID 59524