Bühlmann ZH-L16C-1a 2002 with GRADIENT FACTOR decompression:
* GF_low (CF32) = 30 %
* GF_high (CF33) = 90 %
* deco offset (CF16) = 1.0 m
* last stop (CF29) = 3 m
* dive started at Pamb = 1013 mbar
* Gas switch delay (CF55) = 0 min

OC gas list:
* First gas#1 = 21/0

0:00 30.0m DESCENT DONE
...
1:00 30.0m NDL = 12 '
===================================

OC gas list:
* First gas#1 = 21/0

1:00 30.0m DESCENT DONE
...
6:00 30.0m NDL = 7 '
===================================

OC gas list:
* First gas#1 = 21/0

6:00 30.0m DESCENT DONE
...
8:00 30.0m NDL = 5 '
===================================

OC gas list:
* First gas#1 = 21/0

8:00 30.0m DESCENT DONE
...
10:00 30.0m NDL = 3 '
===================================

OC gas list:
* First gas#1 = 21/0

10:00 30.0m DESCENT DONE
...
11:00 30.0m NDL = 3 '
===================================

OC gas list:
* First gas#1 = 21/0

11:00 30.0m DESCENT DONE
...
12:00 30.0m NDL = 2 '
===================================

OC gas list:
* First gas#1 = 21/0

12:00 30.0m DESCENT DONE
...
13:00 30.0m NDL = 1 '