John,
You might ask how they can  continue with policies like this after incidents
like the Divers Supply Triple Death Tragedy, where each diver wore 4 steel
98's and there massively negative buoyancy at depth was implicated in the
cause of death ( along with several other glaring errors still allowed by
IANTD ).

Dan Volker

 -----Original Message-----
From: 	John Grogan [mailto:john@ro*.co*.uk*]
Sent:	Thursday, November 04, 1999 6:50 AM
To:	Tom Mount
Cc:	techdiver
Subject:	IANTD IT standards

Tom / List,

It would appear (based on IANTD standards in the UK) that steel bottles must
be used for training and that Aluminium bottles simply do not cut it......

the following is part of a message I had from someone trying to do an IT
course ......

"I've recently been told :( that I can't do the IANTD Technical Instructor
course with the instructor trainer I wanted to, unless I switch back from
ali to steel stage bottles. The instructor argued that [my] alis will float
at the end of the dive if 2/3 of gas is used and that they  regard this as
dangerous in sea water decompression as it could add to the positive
buoyancy of a diver. He said the bottles had to be standard 10 ltr steel (or
larger if required) to be safe enough."

Do IANTD really believe that ali bottles are dangerous in the ocean or is
someone trying to pull the wool over our eyes?

Perhaps this IT trainer does not understand how buoyancy works.

What is the official IANTD line on this and do you think this is sufficient
grounds for refusing to let someone train?

Best,
John.

--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]