STARS Open Water Diver Manual

INDEX

Orientation
Transform into a Fish on Your Holidays
Certificate of Fitness for Diving
Certification Card (C-Card)
 
Dive Equipment
Mask
Snorkel
Fins
Gloves/Boots
Diving suits
Weights
Tank
Regulator
Backup Scuba
BC
Gauge
Other Equipment 1
Other Equipment 2
Other Equipment 3
Equipment Setup
Equipment Maintenance
 
Underwater Environment
Topography and Artificial Structures 1
Topography and Artificial Structures 2
Ocean Conditions 1
Ocean Conditions 2
Poisonous Sea Life 1
Poisonous Sea Life 2
Aggressive Sea Life
 
Underwater Physiology
Light and Color
Sound
Drag/Buoyancy
Heat Absorption
Air Composition
Breathing and Circulation Mechanism
Diver Breathing /Air Consumption
Pressure
Pressure and Gas Volume
Lung Over-expansion Injury
Air Embolism
Gas Poisoning
Hyperventilation
Skip Breathing
Decompression Sickness (DCS)
The Human Body’s Air Spaces
Squeeze and Equalization
Specific Squeeze Types
Reverse Block and Equalization
Specific Body Air Cavities and Reverse Block
 
Plan and Rules
Diving Site Selection
Leader and Member
Buddy System
Equipment
Health Maintenance
Refresher Course
Cancellation and Modification
Emergency Plan
Communication
Air Consumption Ratio
Dive Table
Change of the internal nitrogen quantity
Comparison of the internal nitrogen quantity
Constitution of the Dive Table
No-decompression Dive Limit
Residual Group
Surfacing Time
Nitrogen Disappearance Time
Surface Interval Time
No-decompression Dive Limit for the second diving
Residual Nitrogen Time
Residual Group for the second diving
Decompression Stop
Safety Stop
Time Until Safe To Fly
Other attention
Work Sheet
Making a Dive Plan
Multi-Level Diving
Manners
 
Diving Skills
Donning Snorkel Set
Snorkel Clear
Fin Work
Donning the Weight Belt
Head First
Equipment Setup
Entry
Descent
Regulator Clear
Mask Clear
Regulator Recovery
Buoyancy Control
BC Donning and Removal
Weight Belt Donning and Removal
Equipment Release
Dealing with Emergencies 1
Dealing with Emergencies 2
Dealing with Emergencies 3

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Diving Equipment

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Types of Diving Suits

Underwater, we can easily suffer heat loss, so to prevent this heat loss it is important to wear a diving suit. Thus the principal aims of a diving suit are heat retention, body protection and buoyancy. So please choose your diving suit according to the expected water temperature.


Drysuit  Two-piece  ③  One-piece  Skin suit 

Low-
temperature
water

High-
temperature
water

Diving Suit Type and Water Temperature



■Wetsuits

Made from neoprene, inside are a great number of air bubbles that retain heat while providing more buoyancy than rubber. Order-made neoprene wetsuits provide the maximum amount of heat retention by fitting your body perfectly.




Jersey surface  Air bubble

Skin surface

Two-piece

One-piece


Seagull

Two-sided skin



■Drysuits

Since drysuits provide a barrier between your skin and the water, drysuits offer the highest heat retention of diving suits. Derived from neoprene or nylon, they offer motility and comfort while inlet and exhaust valves (located on the legs) allow for fine control.

Nylon-type

Neoprene-type



■Hood

Since In water we lose over 50% of our body heat from head and neck areas, in cool or cold water we need to use a hood. If we wear a vest with attached hood, we magnify our heat retention ability greatly.

Hood

Vest with Attached Hood



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