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 40.0m DESCENT DONE
...
1:00 40.0m NDL = 6 '
===================================

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

1:00 40.0m DESCENT DONE
...
3:00 40.0m NDL = 4 '
===================================

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

3:00 40.0m DESCENT DONE
...
4:00 40.0m NDL = 3 '
===================================

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

4:00 40.0m DESCENT DONE
...
5:00 40.0m NDL = 2 '
===================================

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

5:00 40.0m DESCENT DONE
...
6:00 40.0m NDL = 1 '
===================================

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

6:00 40.0m DESCENT DONE
...
7:02 40.0m Deco:

TTS = 5 '
CNS = 4%