ANDI News
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| reprint from DIVER magazine Announcing Greece as a Diving Tourist Attraction | |||||||||||||||||
| reprint from DIVER magazine announcing ANDI's upcoming DRAKE expedition | |||||||||||||||||
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25 May 2006 This past week I had the privilege to work with Leon Scamahorn of Innerspace Systems Corp to become more familiar with the ISC Megladon CCR. After the week- long experience and diving the rig for 6 hours I feel that my confidence is well-placed. The Meg’s ruggedness and versatility was proven beyond any doubt. In reviewing the Megladon’s calibration procedures, I prefer the "head only" method because it has less variables to cause error and is therefore more reliable. The ability to vari the injection-rate is an important benefit to those who do different types of diving. To be sure, I will be using this tool. I am looking forward to receiving my own three units shortly. In September, ANDI will be again represented at ISC. ANDI IT’s, Pim van der Horst and Helmuth Biechl will be traveling from Holland and Germany to train on the Meg at my recommendation. Other ANDI IT's will soon follow as it is my intention to support this product. Edward A. Betts, Executive Director |
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| Letter Announcing ANDI is the only LICENSED training agency in Greece | |||||||||||||||||
| Letter of appreciation from Israeli Navy | |||||||||||||||||
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Industry Announcement On July 15, 2004 Luxfer Cylinders announced a clarification of their long-held position that cylinders for use with any Oxygen percentage above 23.5% Oxygen must be cleaned and dedicated to contaminant free-gas. While in recent years, Luxfer’s “public statements” on this issue have been twisted to meet various parties needs, Luxfer has never wavered from this belief which they clearly state on their web-site as consistent with ANDI's. As a matter of fact, the ONLY servicing program that Luxfer mentions is ANDI’s! In their policy statement (which can be viewed at):
Beginning in January, 2005 Luxfer will change their out-of-the-box-policy such that “unless otherwise requested, new cylinders will be shipped suitable for AIR ONLY. New cylinders, Oxygen compatible (for use above 23.5% contact), will be available but this must be requested at time of order.” Luxfer further stipulates that by utilizing cleaning & dedication procedures consistent with those taught by ANDI that even a Luxfer-AIR cylinder can be rendered for use with Oxygen mixtures above 23.5% provided proper cleaning and dedication occurs. Isn’t that what ANDI has said since 1988?
All Luxfer scuba cylinders manufactured since January 2000 were properly prepared for oxygen-enriched service when shipped from the factory. However, if a cylinder has not been maintained in a proper state for such service, it will be necessary to clean and properly prepare the cylinder before filling it with an oxygen-enriched mixture. All system components used with a cylinder in oxygen-enriched service—including the valve, regulator and connections—must be oxygen compatible and properly designed and prepared for oxygen-enriched service. Actual cleaning procedures will vary depending on the condition of a given cylinder and the possible contaminants to which the cylinder has been exposed. Once a cylinder has been properly cleaned and prepared for oxygen-enriched service, the cylinder should be tested and certified “oxygen clean” by an authorized laboratory. (For example, the laboratory will test to make sure that the cylinder meets the regulatory standard for hydrocarbon content, since hydrocarbon content in excess of the standard poses a fire danger in the presence of oxygenenriched mixtures.) Failure to prepare a scuba cylinder properly for oxygen-enriched service, failure to conduct subsequent testing or failure to use only oxygen-compatible components could result in serious personal injury or death and property loss or damage. This Luxfer Technical Bulletin supersedes all previous Luxfer statements on this subject.
Reference Luxfer Technical Bulletin dated July 23, 2004 The U.S. Compressed Gas Association (USCGA) and U.S. Occupational Safety and Health Act (USOSHA) 1 define oxygen-enriched service as breathable air with oxygen in concentrations above 23.5% by volume. In all matters concerning gas filling, gas handling and percentage of oxygen content, Luxfer defers to USCGA publications. The term “nitrox” is broadly used in the scuba industry to refer to various breathing mixtures with variable oxygen content. However, in government regulations around the world, there is no single, clear specification for what constitutes “nitrox.” |
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The ANDI Twilight Zone Expedition 2004
The expedition was led by Bart De Gols, Director of ANDI
Benelux and completed 14 team dives to depths of 100 - 150
metres using Closed Circuit Rebreather systems and housed underwater video
cameras. This team included one of the pioneers of mixed gas technical
diving, Ed Betts, Founder and Executive Director of ANDI
International.
Dr. Mark Erdmann, the project’s marine biology advisor had previously conducted one survey of the site from a manned submersible and believes that this twilight zone habitat is very suitable for coelacanths. The ANDI team explored a large range of sites within Bunaken Marine National Park and recorded extensive video footage of the most interesting and unusual fishes and invertebrates encountered. The ANDI team also mapped those areas of the twilight zone in BMNP that are most amenable to further exploration and development as deep technical dive sites.
These dives where the first dives ever to explore the twilight region below 75 metres in Bunaken Marine National Park. Several divers have dived below 75 metres breathing air and upon resurfacing, remembered little or nothing of what they saw. Also Ed Baktis, Deep Support Diver on this expedition made the first rebreather dive in the National Park. The ANDI team used their own proprietary software to plan, calculate and log these dives in the 500 fsw range. This cutting-edge software is now commercially available under the trade name ANDI-GAP DivePlanner. This impressive dive planning tool is of benefit to recreational as well as technical divers. A trial version of this tool is available at ...
Most technical diving at depths greater than 50 metres
has been on deep wrecks, in cave systems, or simply aimed at pushing the
depth envelope. Often deep dives are performed to test the limits of human
physiology. There has been very little, if any technical diving performed
whose primary aim is to explore and document the marine environment in
the twilight zone. No exploration diving has ever been recorded in the
golden triangle of marine bio-diversity centred on the Sulu-Sulawesi Seas
(referred to as the Golden Twilight Zone) except the 2004 ANDI
Expedition. This international “Twilight Zone” expedition
led
Many previously undiscovered and other rare, interesting
creatures were found; including thresher sharks and other unidentified
bottom sharks, chambered nautilus, a range of cuttlefish and octopus species,
red-lipped frogfish, prehistoric stalked crinoids (1.5m height) (tentatively
named Metridium bettsi) with huge commensal galatheid crabs, glass sponges,
giant single-polyp soft corals on 2m stalks, and a host of fascinating
benthic invertebrates that were not easily identifiable. Metridium bettsi Dr. Mark Erdmann, a marine biologist who has worked in BMNP for the last 7 years was the marine biology technical advisor on this expedition. Dr. Mark played the central role in establishing the existence of the coelacanth in this area, as well as recorded the discoveries made during a submersible survey on the south wall of Manado Tua Island.
The coelancanth fish, Latimeria chalumnae (Smith 1939),
is the only living representative of that organism which first appeared
in the fossil record almost 400 million years ago. Coelacanth fishes were
thought to have been extinct for over 70 million years. Because of the
spectacular discovery of a living specimen trawled
Coelacanths are large fishes, reaching almost 2 meters in maximum length and weighing close to 100 kg. They may live to an estimated age of 22 yrs and gives birth to live young. Living coelacanths were known only from the western Indian Ocean, and have been captured from South Africa, Mozambique, Madagascar and the Comoros Archipelago. This
view was shattered on July 30, 1998 when a living coelacanth was captured
off the volcanic slope of Manado Tua in North Sulawesi, Indonesia almost
10,000 miles from Comoros. Fishermen from North Sulawesi are familiar with
the coelacanth as a by-catch of deep shark nets, verifying that there is
a valid population of Indonesian coelancanths which they locally call “King
of the Sea”. This raises the possibility of the existence of intervening
populations in the vast stretch of ocean between Sulawesi and Comoros.
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