Rebreather World - View Single Post - Agency choice and helium in 1st CCR class

**JPJones** · 14th February 2006, 02:35

Quote: (Originally Posted by mikedive)

Hello guys,

Just remember; the IANTD standard say:
"You can do the CCR MOD 1 course using He mixes but based on the Adv. Recreational Trimix diver standards and it limit you to a maximum depth of 150ft/45m and a minimum of 28% of O2 on the mix".
Cheers,

Mike - www.protecdiving.com

You can use 21/15 or 21/30 the 28% doesn't apply to CCR and the depth limit is now 160ft. The 1.0 max dilent po2 at deepest depth over rides the 28%.

14th February 2006, 02:35	#5 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: Agency choice and helium in 1st CCR class Quote: (Originally Posted by mikedive) Hello guys, Just remember; the IANTD standard say: "You can do the CCR MOD 1 course using He mixes but based on the Adv. Recreational Trimix diver standards and it limit you to a maximum depth of 150ft/45m and a minimum of 28% of O2 on the mix". Cheers, Mike - www.protecdiving.com You can use 21/15 or 21/30 the 28% doesn't apply to CCR and the depth limit is now 160ft. The 1.0 max dilent po2 at deepest depth over rides the 28%. __________________ NSS/CDS Training Chairman www.jpjscuba.com
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