This standard specifies the marking, technical requirements, test and inspection methods, inspection rules and marking, packaging, transportation, storage and other requirements for rigid plastic floats (hereinafter referred to as floats) for gill nets. This standard is applicable to products made with polyvinyl chloride, polyethylene, polystyrene, and ABS as the main raw materials and using corresponding molding processes. The pressure-resistant water depth is 40m, 50m, 80m, 120m, 200m, and 300m, and the buoyancy is 0.3N, 0.5 N and 1N gill nets use hard plastic floats, and other specifications of floats can also be implemented accordingly.