3.1.1 Buoyancy equipment intended to support and
enable detection of persons in the water should:
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.1 where required to be fitted with a buoyant
lifeline, have a lifeline equal in length to at least twice the height
at which it is stowed above the waterline in the lightest seagoing
condition, or 30 m, whichever is the greater;
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.2 be constructed to withstand a drop from the
height at which it is stowed above the lightest seagoing waterline,
or 30 m, whichever is the greater, without impairing its operating
capability or that of its attached components;
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.3 be capable of supporting not less than 14.5
kg of iron in fresh water for a period of 24 h;
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.4 have means to enable persons to cling to the
equipment;
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.5 not sustain burning or continue melting after
being totally enveloped in a fire for a period of 2 s;
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.6 where required, be sufficiently heavy to operate
release arrangements of the attached means of detection;
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.7 be prototype tested with regard to paragraphs
3.1.1.2 to 3.1.1.6;
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.8 where required, be provided with means of detection,
complying with the requirements of paragraph
3.7.1.
3.1.2 Individual buoyancy equipment should:
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.1 be so designed that after a demonstration a
person can correctly don the equipment within a period of 1 min without
assistance;
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.2 not sustain burning or continue melting after
being totally enveloped in a fire for a period of 2 s;
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.3 be possible to wear without undue discomfort
during abandonment and within a survival craft;
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.4 if inflatable, inflate automatically upon immersion
and be capable of being inflated manually and by mouth;
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.5 if inflatable, perform effectively with any
one buoyancy compartment inoperative;
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.6 allow the wearer to jump into the water from
a height of at least 4.5 m without sustaining injury and without dislodging
or damaging the equipment;
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.7 allow swimming and boarding of a survival craft
in a seaway;
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.8 in calm fresh water, be capable of lifting
the mouth of a completely relaxed person wearing normal clothing at
least 120 mm clear of the water;
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.9 in calm fresh water, be capable of turning
a completely relaxed person wearing normal clothing from any position
in the water to one where the mouth is clear of the water within 5
s;
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.10 have buoyancy which is not reduced by more
than 5% after a 24 h period of submersion in fresh water;
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.11 be prototype tested with regard to paragraphs
3.1.2.1 to 3.1.2.10 and with regard to paragraph 3.1.2.7 in a seaway;
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.12 be provided with means of detection complying
with paragraph 3.7.2; however,
equipment provided on passenger ships on short international voyages
need not comply with paragraph 3.7.2.2.
3.1.3 Individual garments for protection against
hypothermia should:
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.1 be so designed that after a demonstration a
person can without assistance unpack and correctly don the garment
and any required additional individual buoyancy equipment and clothing,
within a period of 2 min, taking into account possible low ambient
temperature conditions;
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.2 not sustain burning or continue melting after
being totally enveloped in a fire for a period of 2 s;
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.3 not cause undue discomfort to the wearer during
abandonment or in survival craft and permit the person wearing it
and any additional individual buoyancy equipment and any associated
clothing to:
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.3.1 perform normal duties during abandonment;
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.3.2 climb up and down a ladder at least 5 m in
length;
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.3.3 jump vertically into the water from a height
of at least 4.5 m without sustaining injury, dislodging or causing
damage to the garment or allowing undue ingress of water;
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.4 allow a person wearing the garment and any
required additional individual buoyancy equipment to swim and board
a survival craft in a seaway;
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.5 in calm fresh water, in conjunction with any
required additional individual buoyancy equipment, be capable of lifting
the mouth of a completely relaxed person wearing the garment at least
120 mm clear of the water;
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.6 in calm fresh water permit a person wearing
the garment and any required additional individual buoyancy equipment
to turn from any position to one where the mouth is clear of the water
in not more than 5 s;
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.7 if provided with buoyancy, not suffer a loss
of buoyancy of more than 5% after a 24 h period of submersion in fresh
water;
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.8 be prototype tested with regard to paragraphs
3.1.3.1 to 3.1.3.7 and with regard to paragraph 3.1.3.4 in a seaway;
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.9 if meant to be worn without additional buoyancy
equipment or on top of such equipment, be provided with means of detection
complying with paragraph 3.7.2.
3.1.4 In addition to meeting paragraph 3.1.3,
an individual garment for long-term immersion should:
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.1 when used over light clothing and with any
required additional individual buoyancy equipment, allow the wearer
following one jump into the water from a height of 4.5 m to float
in calm circulating water of between 0°C and 2°C for a period
of 6 h during which period the wearer's body core temperature should
not fall more than 2°C.
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.2 permit the wearer, on completion of the above
test, to be able to pick up a pencil and write;
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.3 be prototype tested with regard to paragraphs
3.1.4.1 and 3.1.4.2.
3.1.5 In addition to meeting paragraph 3.1.3,
an individual garment for short-term immersion should:
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.1 when worn in conjunction with warm clothing
and any required additional individual buoyancy equipment, following
one jump by the wearer into the water from a height of 4.5 m, continue
to provide sufficient thermal protection to ensure that when worn
for a period of 1 h in calm circulating water at a temperature of
5°C the wearer's body core temperature should not fall more than
2°C;
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.2 permit the wearer, on completion of the above
test, to be able to pick up a pencil and write;
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.3 be prototype tested with regard to paragraphs
3.1.5.1 and 3.1.5.2.