DIVE ONE DIVE TWO DIVE THREE
MAX DEPTHS MDT MAX DEPTHS MDT MAX DEPTHS MDT
Reduced Gradient Bubble Model (RGBM)
Dive Table - EAN 32
Sea Level to 2,000 ft / 610 m
FIGURE 5-7: NAUI RGBM SEA LEVEL NITROX DIVE TABLE - EAN32
DIVE ONE DIVE TWO DIVE THREE
MAX DEPTHS MDT MAX DEPTHS MDT MAX DEPTHS MDT
Read the instructions on the back and seek proper training before using
this table or EAN 36. Even strict compliance with this table will not
guarantee avoidance of decompression sickness.
Reduced Gradient Bubble Model (RGBM)
Dive Table - EAN 36
Sea Level to 2,000 ft / 610 m
shows the maximum actual depth to be used with each
equivalent air depth, which is printed immediately to
the right.
USING THE NAUI RGBM NITROX DIVE
TABLES
NAUI RGBM Dive Tables are “No-Calculation”
tables and do not require use of letter groups, a surface
interval credit table, or residual nitrogen times, thus
making repetitive dive planning extremely easy and
straightforward.
Chapter 5 - Dive Tables and Dive Computers
NAUI RGBM Dive Tables have been prepared for
EAN32 and EAN36 as well as for air diving. The sea-level
tables provide dive-planning information for altitudes
up to 610 meters (2000 feet). Additional sets of tables are
available for diving at altitudes between 610 and 1829
meters(2000 and 6000 feet) and for 1829 to 3048 meters
(6000 to 10,000 feet).
To use the NAUI RGBM tables, you must follow certain
specific rules, but planning dives with the tables is
simplicity itself.
The important RGBM table rules are:
• A minimum surface interval of one hour is
required between each dive.
• If the actual dive depth is not listed, select the
next greater depth.
• The depth of each repetitive dive must be no
greater than the depth shown on the row immediately
to the right of the previous dive’s depth; of
course, it may be shallower than this maximum
repetitive-dive depth.
• As the tables are designed, there can be no
shallow dive followed by a deeper dive.
• The maximum ascent rate is 9 meters (30 feet)
per minute.
• All dives require a 3-minute safety stop at 5
meters (± 1 meter)/15 feet (± 3 feet).
• On the sea level to 610 meters (2000 feet) tables,
no more than three repetitive dives within a 12-
hour period. In actual practice, the “third dive”
may be a series of repetitive dives not exceeding
the total maximum dive time of 150 minutes.
The flying after diving rule is to wait at least 12
hours after a single dive within the prior 18-hour period,
15 hours after two dives, and 18 hours after three dives.
Example: A diver using EAN32 is planning a dive to
24 meters (80 feet). The maximum dive time for this
first dive is 47 minutes. Moving horizontally to the right
on the same row: after a one-hour surface interval, the
diver can dive to a maximum depth of 18 meters (60
feet) with a maximum dive time of 85 minutes.
Following another one-hour surface interval, the diver
can dive to a maximum depth of 12 meters (40 feet) for
Dive Tables and Dive Computers
61
Read the instructions on the back and seek proper training before using
this table or EAN 32. Even strict compliance with this table will not
guarantee avoidance of decompression sickness.
Copyright © 2001 NAUI Worldwide. All rights reserved.
fsw
120
110
100
90
80
70
60
50
40
msw
36
33
30
27
24
21
18
15
12
minutes
20
25
30
38
47
60
85
115
150
fsw
80
75
70
65
60
55
50
45
40
msw
24
23
21
20
18
17
15
14
12
minutes
47
47
60
60
85
85
115
115
150
fsw
40
40
40
40
40
40
40
40
40
msw
12
12
12
12
12
12
12
12
12
minutes
150
150
150
150
150
150
150
150
150
This table is designed for scuba dives employing EAN 32.
#35514
Copyright © 2001 NAUI Worldwide. All rights reserved.
fsw
110
100
90
80
70
60
50
msw
33
30
27
24
21
18
15
minutes
31
35
46
60
85
115
150
fsw
80
75
70
65
60
55
50
msw
23
21
20
18
17
15
14
minutes
60
60
85
85
115
115
150
fsw
50
50
50
50
50
50
50
msw
15
15
15
15
15
15
15
minutes
150
150
150
150
150
150
150
This table is designed for scuba dives employing EAN 36.
#35517
FIGURE 5-8: NAUI RGBM SEA LEVEL NITROX DIVE TABLE - EAN36