Mailing List Archive

Mailing List: techdiver

Message Display

Lori
On the oxygen issue, if you will take the time to pay a laywere as we 
have you will find that if you have an ACCIDENT IN A MIXING OR USE 
SITUTATION THAT BECAUSE OF (excuse the caps mistake) thye laws, CGA 
which is more strict etc. If you are using excess of 40% you will most 
likely lose everything you have or ever will have in a lawsuit. If you 
wish to read any number of papers on the issue you will find that there 
is danger in pure o2 in non compatiable systems. Luckily almost all 
manufactres are now offering nitrox compatiable (thus oxygen 
compatiable regulators tha meet the spec upon purchase to be used with 
02). If you value your estate ,and as I have spent alife time 
developing mine I value it you will stay within the 40% rule in a 
teaching classr etc situtation as an individual do what you wish 
provided you pump your own gas and maintain your equipoment. If you 
have a shop servive it and thewre is an accident he is in a serious 
liability situtation.

We used to in the 60-70's use non compatiable equipment and did have 
sonme regulators have minor pop's.

I would discuss this more except we are in the middle of three weeks of 
rebreather classes and it is 7 days a week 12 hrs a day.
tom

 
You wrote: 
>
>Item Subject: Message text
>I was just sitting here at work, looking up an OSHA regulation when 
the
>section on commercial diving caught my eye. In light of the recent
>discussions by Tom Mount and others on Nitrox diving, I decided to 
take
>a look. It appears that there is in fact a regulation for commercial
>divers - 29CFR1910.430(i) that says that all equipment (except
>umbilicals) used with >40% oxygen must be free of flammable materials
>and cleaned for oxygen service.  And based on the definition of
>commercial divers, WKKP is exempt, since scientific divers are, but
>instructors using SCUBA with gases other than compressed air are not
>excempt (IANTD< PADI< etc.). However, after reading all the rules for
>commercial divers, most instructors using Nitrox (myself included) are
>breaking many other OSHA regulations (on-site chamber for dives >100 
ft
>or outside decompression limits, etc.) in addition to the O2 cleaning,
>so it is a good thing that OSHA is not enforcing the rules. Also, my
>understanding, based on discussions with PADI, etc. is that OSHA may
>chnage to excemption for instructors to include other gases than air.
>I hope this is of interest.
>
>Lori
>

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]