WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 28 ONLY FOR 28% O2, 72% N2 MIXTURES
28
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 29 ONLY FOR 29% O2, 71% N2 MIXTURES
29
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 30 ONLY FOR 30% O2, 70% N2 MIXTURES
30
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 31 ONLY FOR 31% O2, 69% N2 MIXTURES
31
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 32 ONLY FOR 32% O2, 68% N2 MIXTURES
32
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 33 ONLY FOR 33% O2, 67% N2 MIXTURES
33
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 34 ONLY FOR 34% O2, 66% N2 MIXTURES
34
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 35 ONLY FOR 35% O2, 65% N2 MIXTURES
35
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 36 ONLY FOR 36% O2, 64% N2 MIXTURES
36
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 37 ONLY FOR 37% O2, 63% N2 MIXTURES
37
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 38 ONLY FOR 38% O2, 62% N2 MIXTURES
38
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 39 ONLY FOR 39% O2, 61% N2 MIXTURES
39
AWD NDP 07-2015
WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS, CONSERVATIVE USAGE IS STRONGLY RECOMMENDED.
RNT RESIDUAL NITROGEN TIME
+ABT ACTUAL BOTTOM TIME
ESDT EQUIVALENT SINGLE
DIVE TIME
CH
AR
T 2 –
SUR
FAC
E IN
TER
VA
L TI
ME
TIM
E R
AN
GE
S A
RE
HO
UR
S:M
INU
TES
ENTE
R F
RO
M T
HE
TOP
, MO
VE
TO F
IND
SU
RFA
CE
INTE
RV
AL
TIM
E.
MO
VE
LEFT
TO
FIN
D T
HE
NEW
REP
ETIT
IVE
GR
OU
P L
ETTE
R
CH
AR
T 3
– R
EPET
ITIV
E D
IVE
TIM
E
RED
NU
MB
ERS
AR
E R
ESID
UA
L N
ITR
OG
EN
TIM
ES (R
NT)
.
BLA
CK
NU
MB
ERS
AR
E A
DJU
STED
NO
-STO
P R
EPET
ITIV
E D
IVE
TIM
ES.
A
CTU
AL
DIV
E TI
ME
SHO
ULD
NO
T EX
CEE
D T
HIS
NU
MB
ER.
00
0
0
CH
AR
T 1 –
DIV
E TI
MES
WIT
H E
ND
-OF-
DIV
E G
RO
UP
LET
TER
NO-DECOMPRESSION TABLE NOAA NITROX 40 ONLY FOR 40% O2, 60% N2 MIXTURES
40
AWD NDP 07-2015
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