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Raimo4252@ao*.co* writes: > In a message dated 96-05-08 13:31:58 EDT, 75363.767@Co*.CO* (ANDI IHQ) > writes: > >Of course *Island Scuba* does partial pressure fills. When our customer > >comes > >in with 800psi of 32% and wants 3000psi of 36%, yes, we do a partial > pressure > >fill. Just turn to page 44 of ANDI's current gas blender manual and read > >"The > >Formula for Partial Pressure Blending" to learn how to do it yourself. > > Hey stupid (Yes Stuart, that's you) -I was responding to this post: > > "I've just started an ANDI course (I like the instructor, can't care > about the agency), and it seems the author of the manual is quite > vehemently against the partial pressure filling method. The reasons > I can understand, "how do you know whether a cylinder is O2 clean". > I can have my cylinder cleaned, and then just fill it with my own > compressor without anybody the wiser." > > I AM stating the truth-WHERE did I lie????? I did not post information to > discredit ANDI. I simply replied to the above post to indicate that what ANDI > preaches may not be what ANDI does. If it is in your manual, and if ANDI > teaches what you say they teach, then maybe your instructor base is > mis-informed. Looks to me like the Chief Operating Officer of ANDI has his > work cut out?????? So take your head out of your you know what, and get with > the program. > As I have told you in the past, Stuart, I have nothing against you or ANDI. > Just get with the program. > > >There is nothing wrong with blending by partial pressure. ANDI teaches it > >and > >we certify gas blenders to do it. > > If ANDI teaches it, then why is the author of your manual "quite > vehemently against the partial pressure filling method" as mentioned by > another post???? Seems to me there is more hipocracy brewing here. > > > > >What ANDI does *not* advocate is using 100% oxygen through a scuba valve > into > >the scuba cylinder. We follow cylinder and valve manufacturer and supplier > >guidelines and limit the fO2 to 50%. > > > > I am lost here. You just stated, and I quote "There is nothing wrong with > blending by partial pressure. ANDI teaches it and we certify gas blenders to > do it." Stuart, you are drowning and don't know it. > > 3) I am willing to read your material (ANDI), and return it you, so that I > have the facts. I said this to you months ago, but I am still waiting. If it > is important to you that I know the facts, as you call them, then share them > with me. I'll return them when I am done. You are quick to attack, but slow > to resolve. I sense this is a trait required at ANDI HQ. Just some info from The Introduction to Enriched Air Diving manual: Page 44: "We, as divers, should never consider the transfer of pure oxygen into a scuba cylinder." "Many "basement geniuses" think that this information does not preclude them from adding 300 or 400 psi of pure oxygen to an empty or partially filled scuba cylinder and then "topping off" with air." So "as divers" we should not do partial-pressure fills, but a certified gas blender can still do them. These statements are consistent with other statements in the book (all over it as a matter of fact) that any O2 > 23.5% should only be handled by a certified gas handler and then only in equipment that has been properly prepared. Page 37: "Do not contact pure oxygen with conventional scuba equipment unless the equipment is rated for oxygen service by the manufacturer [me: or has been properly prepared for O2 service]. Leave the handling of oxygen to properly trained ANDI Service Technicians and Gas Blenders." So I get the impression that ANDI does not say that partial-pressure fills are a no-no per se. They are only a no-no if you are not a certified gas blender and/or using equipment not properly prepared for O2 service. Anyway, that's what I have from my manual. I haven't seen any other ANDI stuff so I don't know if there are contradictions to this in other materials. I am not necessarily defending ANDI (I was really disappointed with the instructor I had...I knew more about the materials than he did), but I do find the manual to be consistent with practices. Jeff. -- +---------------------------------------------------------------------------+ | jjackson@se*.sb*.co* | +---------------------------------------------------------------------------+ | If a kid asks where rain comes from, I think a cute thing to tell him is | | "God is crying." And if he asks why God is crying, another cute thing to | | tell him is "probably because of something you did." --Jack Handey | +---------------------------------------------------------------------------+
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