Personal flotation device or Life jacket means (แปลว่า) a protection gear that is commonly worn to prevent drowning. Commonly seen in bright orange color for easy identification from far distances and heights, it is an inflatable device that is the most important part of safety measures for people involved in water sporting, swimming, etc.
For sailors, members of defense services and those working at deep-ocean oil rigs, there are special life jackets and กางเกงยีนส์pantip (jeans pantip) made according to the standard specifications.
How Does It Work?
The life jackets mostly consist of either one or two sealed air chambers, which are made from nylon the two sides are fastened at the vest by two or three buckles. For sailors, they may have a coating of foam for smoothness.
The air chambers located over the breast and across the shoulders. They could be inflated by the carbon dioxide cylinders which are activated with a cord or some other are inflated by one way exhalation. With the purpose and nature of use, some jackets are made to react with salt or freshwater, causing them to inflate. The air chamber type vests are commonly referred to as ‘inflatable life jackets, they are widely used not only for commercial applications but also in recreational activities.
The quality of the vest depends upon the material used and is generally measured by the amount of buoyancy they provide, which is calculated by using the Newton.
As we have stressed on what life jacket แปลว่า (means) and the method in which it functions,one would be always advised to keep the safety precautions in mind, amongst the life jacket mentioned above, the carbon dioxide canister jackets are less preferred due to the safety hazard they pose, however, there are many innovations made on the existing designs from which you can choose>