1. Protection against ignitions arising out of static, lightning and stray currents;API RP 2003,2008
2. Standard test method for minimum ignition energy and quenching distance in gaseous mixtures;ASTM E 582,2007
3. Standard test method for temperatures limit of flammability of chemicals;ASTM E 1232,2007
4. Standard test method for selection and use of ASTM standards of flash point of chemicals by closed cup methods;ASTM E 502,2007
5. Some characteristics of liquid-to-metal discharges involving a charged “low risk” oil;Britton;Journal of Electrostatics,1982