OPS Oxygen

Entire Flight above 10000ft

Entire Flight above 13000 ft

Any period exceeding 30 min above 10000 ft but below 13000 ft

Entire Flight above 13000 ft

Entire Flight After 30 min above 10000 ft but below 13000ft

Entire Flight above 13000 ft

Entire Flight After 30 min above 10000 ft but below 13000 ft

30 min supply certified to fly up to 25000 ft

2 hours supply certified of more than 25000 ft

Entire Flight above 13000 ft but not less than 30 min

Remainder of flying time between 10000ft but below 13000 ft after 30 min

Entire flight time above 15000 ft but not less than 10 min

Entire Flight time between 14000 ft and 15000 ft

Remainder of the flight time between 10000 ft and 14000 ft after 30 min