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Scuba diving is the use of independent breathing equipment to stay underwater for long periods of time for recreational diving and professional diving. Generally the diver swims underwater, but walking and the use of diver propulsion vehicles is possible while breathing from scuba equipment. The word 'SCUBA' is an acronym for "Self Contained Underwater Breathing Apparatus", but it is grammatically acceptable to refer to 'scuba equipment' or 'scuba apparatus' in conversation.
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Gauging DOT 3AL3000 SCUBA cylinder neck threads
In response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompression
Isobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made available
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SCUBA Diving Buoyancy and Breathing Visualization and the "Minds Eye"
I play Golf. I am OK neither good nor bad. I sometimes use a technique when I putt the ball on the green, it is called “Seeing the Putt”. Before I putt I imagine my body taking the putt, I see the Read more...
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Scuba Diving - It Ain't What You Do - It's the Way That You Do It
Some dive organizations appear to be hell-bent on getting as many people as possible to scuba dive. They are then able to release amazing statistics that suggest that everyone and his dog is scuba diving. I can hear a famous ditty ringing in my ears: It ain't what you do, its the way that you do it!
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This logic applies very well to scuba diving. Its all very well that 5 million people throughout the world can scuba dive, however, its the way that they do it that really matters. It is often those -I can scuba dive- people who get into trouble underwater and are at risk of finding themselves in an -I nearly died scuba diving- situation.
Who is to blame?
The industry or the individual? The industry is often given bad press for reducing their training course requirements and/or course length. You could also apportion blame to the tourism industry who market as a blissful recreation that no holiday is complete without! Alternatively you could blame society for our in-built consumerism and drive to spend money. However, it is also the responsibility of the individual diver to make sure he or she knows as much as they can about the risks of and what to do if something goes wrong.
Article continues below...
Gauging DOT 3AL3000 SCUBA cylinder neck threadsIn response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompressionIsobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made availableDecompression trends for extreme dive planningDeriving the underlying laws and predictive mathematics for diving physiology, safe decompression, Oxygen toxicity tolerance, narcosis, and HPNS (High Pressure Nervous Syndrome) have challenged the minds of the worlds brightest scientists. That many of the victims of incorrect decompression fail to survive extreme decompression and be part of the observable phenomenon database further hampers progress. As a first topic in this series of articles we will take a more in depth look at decompression and how to survice it's more extreme effects.
So, it is up to each individual diver to weigh up the risks and benefits of scuba and ensure they have a realistic view of what is involved. Ultimately, if you dive, the buck stops with YOU!
Reiss Mackie is a instructor living and working on the beautiful Great Barrier Reef in Australia. He is an expert on stress in scuba divers and co-author of
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Panic Management Guide with Dr Sarah Carney
MBBS. Visit his website and forum for more information on the psychological challenges of diving
Reiss Mackie is a instructor living and working on the beautiful Great Barrier Reef in Australia. He is an expert on stress in scuba divers and co-author of The Panic Management Guide with Dr Sarah Carney MBBS. Visit his website and forum for more information on the psychological challenges of diving
www.scubadivingpanicmanagement.com
Important Components of a Scuba Regulator
Some basic component: Either an A-Clamp or a DIN fitting must connect the regulator to the pillar valve or the diving cylinder.A Clamp – An a-clamp is the more Read more...
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Tips When Choosing and Buying a Scuba Mask
Whether for entertaining yourself or as part of a professional collection of gear that allows you to dive farther than average, the right scuba mask can allow you to have the greatest amount of Read more...
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Tips to Remember Before Purchasing from Online Scuba Shops
When choosing an online scuba shop it’s a good idea to apply the same examination and awareness that you would while browsing a prospective online shop of any kink. Whether a shop sells surf Read more...
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Scuba Diving Has An 80% Drop Out Rate, Learn To Keep Diving
Although there are many different organizations that certify Scuba Divers (PADI, SDI, YMCA, etc) there is problem with keeping people diving. Even though once you’re certified, there is no Read more...
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Gauging DOT 3AL3000 SCUBA cylinder neck threads
In response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompression
Isobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made availableDecompression trends for extreme dive planning
Deriving the underlying laws and predictive mathematics for diving physiology, safe decompression, Oxygen toxicity tolerance, narcosis, and HPNS (High Pressure Nervous Syndrome) have challenged the minds of the worlds brightest scientists. That many of the victims of incorrect decompression fail to survive extreme decompression and be part of the observable phenomenon database further hampers progress. As a first topic in this series of articles we will take a more in depth look at decompression and how to survice it's more extreme effects.Vigilance urged when treating decompression illness with US Navy table 6A
Satahip, Thailand 2005 was the location for the first hyperbaric technician course run by the British Diving and Diseases Research Centre (DDRC) - An organization set up to study the effects of pressure and provides hyperbaric chamber oxygen treatment facilities and medical training for divers, technicians, nurses and doctors worldwide. During the course, the use of the various USN tables for the treatment of decompression illness and was studied. Technician trainees also had the opportunity to visit monoplace chambers at the Queen Sirikit Naval hospital to witness the use of hyperbaric oxygen to treat skin infections that did not respond well to other techniques. For divers, the treatment of DCI generally results in the use of two US tables. Table-6 for type I DCI-pain only symptoms and skin rashes, and USN treatment table 6A for the treatment of type II DCI-Arterial Gas Embolism. Unfortunately, table 6A is also notorious amongst for causing DCI amongst attending medical personnelWorld record deep dives made using new decompression technique
A new decompression diving technique based on the Combined Decompression Model CDM-18 that provides the knowledge base used by two previous world record breaking deep divers is made available to the diving public. A spreadsheet implementation of the CDM-18 model analyzes any dive profile and breathing gas combination for correct decompression methodology, clearly identifying any profile abnormality or breathing gas change that would likely cause DCSFirst Internationally recognised Dive Technician Courses to be run in Thailand
Mermaids Dive Center, Pattaya, Thailand to Teach the ASSET Approved 10 Day Dive Industry Technician (DITC) Training CourseDivers Breathing Air compressor technical data now available on-line
www.scubaengineer.com creates an online database of compressor servicing information expanded to include all past and present Bauer and Coltrisub Compressor service manualsFirst steps to improving Scuba tank safety in Thailand
Mermaids Dive Center, Pattaya opens Thailand's first combined Hyrostatic and visual inspection station for testing scuba tanks to international specifications. The UK designed system features traceable measurements of scuba cylinder abnormalities to US,UK and European CE standards and utilises a seperate test station for carrying out the latest magnetic eddy current equipment capable of detecting invisible SLC cracks that have cause several fatal scuba cylinder explosions
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