Marine life-saving waistcoat of ZhS-K type

Materials of "Rescue waistcoat LS-K" (hereinafter - waistcoat) meet the requirements of "Rules of classification and construction of sea vessels" of the Russian Maritime Register of Shipping, Volume II, Part XIII "Materials".
Materials used in the waistcoat provide resistance to sea water, sun rays, oil and oil products, corrosion, rotting, fungi.
The colour of the waistcoat is orange, which ensures its visibility and facilitates quick detection on the water surface.
The waistcoat complies with OM1 requirements according to
GOST 15150-69 for operation in the temperature range from -40°? to +45°? and retains operability at sea water temperature in the range from -1°? to +30°?.
The design of the waistcoat and the materials used ensure that it can be put on over winter or summer clothing without assistance at the outside temperature from -40°C to +45°C in no more than 1 min.
The waistcoat provides a jump into water from a height of not less than 4.5 m without causing bodily harm to a person....