This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of marine light bulbs (hereinafter referred to as "light bulbs"). This standard applies to incandescent light bulbs used on ships and ships for general lighting, mast signals and instructions.
QB/T 2056-1994 history
2008QB/T 2056-2008 Water craft electrical filamaent lamps