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To: mdm@ye*.me*.co* (Maria D. Maggio)
Subject: Re: IANTD courses
From: "Ms A.M. Lawrie" <aml@li*.ac*.uk*>
Cc: techdiver@opal.com
Date: Mon, 27 Mar 1995 19:05:40 +0100 (BST)

Maria D. Maggio asked:

> i seem to have conflicting information. are there any
> current IANTD instructors on this list who can look
> up the following questions, please?
> 
> i was told that:
> basic nitrox qualifies you to get only 32% and 36%.
> advanced nitrox qualifies you to get anything from 29% to 40%.
> technical nitrox qualifies you to get any nitrox mix (up to 100% o2).
> 
> is this correct? if not, what are the correct values?
> 

Basic Nitrox qualifies you for 32% and 36% EANx only and does not include any
CNS tracking information.

Advanced Nitrox qualifies you to use 21%-40% primary gas, with 50% Deco gas. 
Also includes extensive CNS tracking and best mix principles for depth.

You need to be at least advanced nitrox qualified before you can embark on
the technical nitrox course.

Prerequisites for Basic:  PADI advanced open water or equivalent. Minimum of
			  25 logged dives.
		Advanced: CMAS 2-star or equivalent. Minimum of 50 logged dives,
			  (10 of which in 30-40 metre range.)

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