GB/T 14773-2007 standard specifies the safety technical requirements for electrostatic spray painting and electrostatic spray guns and their auxiliary devices in powder spraying areas. The standard applies to the design, manufacture, testing, use and maintenance of various handheld and automatic electrostatic spray guns and their auxiliary devices. The content includes general protection, electrical safety, mechanical structure safety and other requirements, and introduces the protection ability verification, impact test, drop test and other test methods to ensure the safety and Reliability of the equipment.