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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Plan and Rules

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 How to examine Residual Nitrogen Time?

A diver of Residual Group E at the time of the first diving end plans the second diving of 15 m after 1 hour 30 minutes Surface Interval Time. How long is Residual Nitrogen Time?

《The usage of Dive Table》

You can look for the contact of ① and ② as you have leaned before.
A number of the lower left corner is the Residual Nitrogen Time at 15m.


Correct answer: 13 minutes

You can understand that the quantity of residual nitrogen at the beginning of next diving is the same as the one that is accumulated in your body at 13 minutes at 15 m.

Residual Nitrogen Time is added to the second real Bottom Time.

【A Dive Table term】

■Residual nitrogen
The nitrogen that is left in the body after diving

■Residual Nitrogen Time
The time that is rearranged the quantity of the residual nitrogen.

■Residual Nitrogen Time Table
This Table displays the quantity of residual nitrogen from a previous dive.


 

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