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12

VIII. HYPOTHERMIA

Prolonged exposure to cold water causes a condition known as
hypothermia - a substantial loss of body heat, which leads to exhaustion
and unconsciousness. Most drowning victims first suffer from hypothermia.
The following chart shows the effects of hypothermia:

PFDs can increase survival time because they allow you to float without
using energy treading water and because of their insulating properties.
Naturally, the warmer the water, the less insulation you will require. When
operating in cold waters [below 60º F(15.6º C)] you should consider
using a coat or jacket style PFD or a Type V Thermal Protective PFD as
they cover more of the body than the vest or belt style PFDs.

HOW HYPOTHERMIA AFFECTS MOST ADULTS

Water Temperature

Exhaustion or

Expected Time

º C

º (F)  

Unconsciousness

of Survival

0.3

(32.5)

UNDER 15 MIN

UNDER 15 TO 45 MIN

0.3 TO 4 (32.5 to 40)

15 TO 30 MIN

30 TO 90 MIN

4 TO 10

(40 to 50)

30 TO 60 MIN

1 TO 3 HOURS

10 TO 16 (50 to 60)

1 TO 2 HOURS

1 TO 6 HOURS

16 TO 21 (60 to 70)

2 TO 7 HOURS

2 TO 40 HOURS

21 TO 27 (70 to 80)

2 TO 12 HOURS

3 HOURS TO INDEFINITE

Over 27

(Over 80)

INDEFINITE

INDEFINITE

Содержание 33MSPT

Страница 1: ...old I MANDATORY CARRIAGE REQUIREMENTS Federal regulations in 33 CFR 175 1993 require you to carry Coast Guard approved personal flotation devices PFDs legibly marked with the Coast Guard approval num...

Страница 2: ...2...

Страница 3: ...es 76 107 cm Adult Large X Large 44 48 inches 112 122 cm Weight Range More than 90 pounds 41 kg Age Range 16 years of age and older Buoyancy minimum 33 7 Pounds 150 Newtons when fully inflated Inflati...

Страница 4: ...efer to Page 8 2 How to Inspect the Mechanism and Cylinder The mechanism is located on your right side under the protective cover Before inspecting the mechanism remove the CO2 cylinder to prevent unn...

Страница 5: ...to use it Always wear your PFD over not under clothing Caution Bulky clothing may affect the ability of this PFD to turn the wearer to a face up position in the water D INFLATED DONNING INSTRUCTIONS I...

Страница 6: ...n the device is inflated with C02 than with air and that earlier replenishment by means of the oral inflation system will therefore be necessary after several hours F DEFLATION INSTRUCTIONS Depress Or...

Страница 7: ...fter oral inflation will damage the PFD to the point that it will not hold air or float III CARE AND MAINTENANCE INSTRUCTIONS A GENERAL PRODUCT LIFE EXPECTANCY The reliability and service life of this...

Страница 8: ...If the chamber deflates immediately bring to a certified Repair Facility for repair The device is no longer in opera tional condition d Deflate install the CO2 cylinder inspect to ensure that the PFD...

Страница 9: ...eir heads above water The proper size PFD will properly support the weight of the wearer Since this inflatable PFD does not have inherent buoyancy it provides flotation only when inflated Familiarize...

Страница 10: ...ep enough that you can stand with your head above the surface 5 See if the PFD will float you on your back or just slightly back of vertical In a relaxed floating position verify that your mouth is we...

Страница 11: ...PFD 6 Fully inflate the PFD using the oral inflator 7 See if the PFD will float you on your back or just slightly back of vertical In a relaxed floating position verify that your mouth is well above t...

Страница 12: ...ss insulation you will require When operating in cold waters below 60 F 15 6 C you should consider using a coat or jacket style PFD or a Type V Thermal Protective PFD as they cover more of the body th...

Страница 13: ...you conserve body heat 4 Keep a positive attitude about your survival and rescue This will improve your chances of extending your survival time until rescued Your will to live does make a difference...

Страница 14: ...S TO YOUR BOAT Each PFD has straps hooks buckles or other means for securing the device in place on the wearer Some PFDs also incorporate decorative dee rings or tabs Such items are not to be used to...

Страница 15: ...strap 2 Re Arm mechanism 3 Fold along lines A B as marked on chamber 4 A B 3 5 REPEAT for other side lines C D 6 Fold tip of chamber back and snap to webbing 7 Tuck chamber into shoulders and connect...

Страница 16: ...der to be sure it has sensor ring attached Step 4 Install new cylinder by engaging bayonet tabs in housing pushing in then turning clockwise 1 8 turn to a full stop WARNING PFD WILL ONLY INFLATE IF CY...

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