Marine Immersion suit's requirements as per LSA code and SOLAS

Updated: Jul 11

LSA Code Chapter II

2.3 IMMERSION SUITS

2.3.1 GENERAL REQUIREMENTS FOR IMMERSION SUITS

2.3.1.1 The immersion suit shall be constructed with waterproof materials such that:

  1. IMMERSION SUITS can be unpacked and donned without assistance within 2 min, taking into account any associated clothing, and a lifejacket if the immersion suit is to be worn in conjunction with a lifejacket;

  2. it will not sustain burning or continue melting after being totally enveloped in a fire for a period of 2 s;

  3. it will cover the whole body except for the face. Hands shall also be covered unless permanently attached gloves are provided;

  4. it is provided with arrangements to minimize or reduce free air in the legs of the suit; and

  5. following a jump from a height of not less than 4.5 m into the water there is no undue ingress of water into the suit.

2.3.1.2 An immersion suit that also complies with the requirements of section 2.2 may be classified as a lifejacket.

2.3.1.3 An immersion suit shall permit the person wearing it, and also wearing a lifejacket if the immersion suit is to be worn in conjunction with a lifejacket, to:

  1. climb up and down a vertical ladder at least 5 m in length;

  2. perform normal duties associated with abandonment;

  3. jump from a height of not less than 4.5 m into the water without damaging or dislodging the immersion suit, or being injured;

  4. swim a short distance through the water and board a survival craft.

(Refer to paragraph 3.1.3 of the Recommendation on Testing of Life-saving Appliances adopted by the Organization by resolution A.689(17) )

resolution A.689(17) immersion suit
.pdf
Download PDF • 4.16MB

2.3.1.4 An immersion suit that has buoyancy and is designed to be worn without a lifejacket shall be fitted with a light complying with the requirements of paragraph 2.2.3 and the whistle prescribed by paragraph 2.2.1.8.

2.3.1.5 If the immersion suit is to be worn in conjunction with a lifejacket, the lifejacket shall be worn over the immersion suit. A person wearing such an immersion suit shall be able to don a lifejacket without assistance.

2.3.2 THERMAL PERFORMANCE REQUIREMENTS FOR IMMERSION SUITS

2.3.2.1 An immersion suit made of a material that has no inherent insulation shall be:

  1. marked with instructions that it must be worn in conjunction with warm clothing; and

  2. so constructed that, when worn in conjunction with warm clothing, and with a lifejacket, if the immersion suit is to be worn with a lifejacket, the immersion suit continues to provide sufficient thermal protection, following one jump by the wearer into the water from a height of 4.5 m, to ensure that when it is worn for a period of 1 h in calm circulating water at a temperature of 5°C, the wearer's body core temperature does not fall more than 2°C.

2.3.2.2 An immersion suit made of material with inherent insulation, when worn either on its own or with a lifejacket, if the immersion suit is to be worn in conjunction with a lifejacket, shall provide the wearer with sufficient thermal insulation, following one jump into the water from a height of 4.5 in, to ensure that the wearer's body core temperature does not fall more than 2°C after a period of 6h immersion in calm circulating water at a temperature of between 0°C and 2°C.

2.3.3 BUOYANCY REQUIREMENTS

A person in freshwater wearing either an immersion suit or an immersion suit with a lifejacket shall turn from a face-down to a face-up position in not more than 5 sec.

SOLAS CH.3 Regulation 7

Personal life-saving appliances