1. Marine Lifejacket, (MarineChildLifejacket), suitable for life-saving use of all types of people on ocean coasts and inland rivers. The buoyancy of the lifejacket is greater than 113N after being immersed in the water for 24 hours, and the loss of buoyancy of the lifejacket should be less than 5%. Life jacket buoyancy material: polyethylene foam. The new marine life jacket is a new life jacket designed and manufactured in accordance with the requirements of IMOMSC207 (81) and MSC200 (80). The specification was implemented on July 1, 2010.
2. Marine work life jacket (Marinework Lifejacket), suitable for all kinds of people working along the coast and inland rivers. The buoyancy of the lifejacket is greater than 75N. After the lifejacket is soaked in water for 24 hours, the buoyancy loss of the lifejacket should be less than 5%.
3. Leisure life jackets: Some are also called WaterSports Lifejackets. The fabrics are mostly neoprene composite materials with a variety of color matching, which is fashionable and beautiful. It is mainly suitable for water play, learning to swim, rafting, fishing, etc. Wearing for life-saving protection.
Marine
Generally used are marine life jackets. The inside is made of EVA foam material, which is compressed and 3D shaped, and its thickness is about 4 cm (the domestically produced 5-6 thin hair materials are about 5-7 cm thick). Life jackets produced in accordance with standard specifications have their buoyancy standards: generally 7.5 kg/24 hours for adults and 5 kg/24 hours for children, so as to ensure that the chest is above the water surface.
How to use: Wear the lifejacket with whistle pocket facing outwards; pull up the zipper, tighten the front tie with both hands, and fasten the neckband; cross and fasten the lower tie on the front body; check whether each part is tied after putting it on prison.
Use colors: bright colors or colors with fluorescent components in life jackets can stimulate the optic nerve. It may be related to the wavelength of this color, which is easily accepted by human eyes and not easily confused by other colors. This will be more conspicuous. In this way, in the event of an accident while wearing a life jacket, it is easy to be discovered, and rescue can be implemented as soon as possible.
Aviation
The inflatable lifejacket is to pull the rope on the inflator to make the rod to be not less than 90 degrees, the puncture needle pierces the diaphragm in the high-pressure gas storage cylinder (disposable, replaceable), the high-pressure carbon dioxide gas rushes into the airbag, and the gas expands Then it produces buoyancy, so as to achieve the purpose of life-saving.
Inflatable life jackets are mainly composed of air-tight inflatable vest airbags, miniature high-pressure gas cylinders and rapid inflation valves, etc., and are often used in work where there is a possibility of falling into the water. Under normal conditions (not inflated), the entire inflatable life jacket is worn like a belt and hung on the shoulders of people. Because of its small size, it does not hinder people's freedom of operation; once it falls into the water, it will encounter danger in the water and require buoyancy. In an emergency, it can be inflated automatically according to the action of water (automatic inflatable life jacket), or pull the cable on the inflation valve by hand (manual inflatable life jacket), it will be inflated within 5 seconds to produce 8-15 kg of buoyancy, upward Hold the human body so that the head and shoulders of the person who accidentally fall into the water are exposed to the surface of the water, so as to obtain safety protection in time.