DCIEM DIVING MANUAL: AIR DECOMPRESSION PROCEDURES AND TABLES It includes the complete set of tables – Standard Air Decompression, Short. The Defence and Civil Institute of Environmental Medicine (DCIEM) has recently Based on over 20 years of decompression research at DCIEM, these tables. How to use DCIEM dive tables. SAFE DIVE Planning – DCIEM dive tables. Dive 1, Dive to depth to 18m with a Bottom Time (BT)of 30 mins. Refer to DCIEM Table.

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You can make this box go away Joining is quick and easy. Byover 5, experimental dives had been conducted to validate the K-S Kidd-Stubbs model. Your name or email address: Search Media New Media.

DCIEM decompression theory

Areas well supplied by blood like lungs and abdominal organs absorb nitrogen faster than other tissues. Some areas of your body absorb gas faster than others. Don’t plan dives with these tables unless you learn proper proceedures from someone familiar with them.

What is a tissue? You must log in or sign up to reply here. Nitrogen pressure in your body is referred to as nitrogen tension. Experiments and educated guestimation have led to some generalizations about which areas of the body are faster or slower than others.

How do you read DCIEM Tables??

What Are Serial and Parallel Models? Decompression tissues are categorized by how fast they uptake gas. Water pressure during ascent forces nitrogen into your slow tissueswhile your fast tissues outgas.


Yes, my password is: They came to realize that the human body is better represented by a series arrangement of tissues. Login or Register now by clicking on the button Log in or Sign up.

There is a maximum nitrogen tension for tissues. I can get as far as getting the No-D limits for a second dive. There is a maximum nitrogen tension for each halftime tissue. Charlie99Nov 19, Table C gives you a no “D” limit for a Repet dive, taking into account residual N2 from the first dive. Different filling times result for each compartment depending on depth and time.

Group and Surface interval time gives you a Repetitive Factor. It’s not true that you only offgas on ascent. WalterNov 19, The present theory is based on this dive table. RandyNov 19, A Free photo gallery to share your dive photos with the world. M stands for maximum These bubbles are the cause of decompression sickness.

Ongas and outgas on ascent.

I’ve asked people at LDS and on site while diving. This is a property of fat, and is true even for fatty areas with a blood supply similar to leaner tissue.

Benefits of registering include Ability tablse post and comment on topics and discussions. Because fatty tissues hold more nitrogen than watery tissues, it takes longer for nitrogen to fill and leave fatty tissue.

Your entire body absorbs nitrogen under pressure. Joining has its benefits and enables you to participate in the discussions. I’ve never seen them before. For example, at 30 ft, if you stay submerged for 45 minutes, on these NAUI tables your repetitive group would be B, on the DCIEM tables, there is no 45 minutes at 30 ft, so you’d use 60 minutes and your repetitive group would be D.


In a parallel model, the tissue compartments are assumed to ongas and offgas to the blood stream independently of each other.

How do you read DCIEM Tables?? | ScubaBoard

What Are Fast and Slow Tissues. They will still have a lower pressure than the surrounding water. Its mission is to enhance the safety and effectiveness of Canadian Forces personnel in the way in which they interact with their equipment and the way in which they function in difficult environments.

Time and depth dive you a “Rep. Most dive tables are based on parallel decompression models. Fast tissues ongas and offgas in shorter halftimes than slow tissues. They went through several variations of their air decompression model, improving the tablee of the model after each iteration.

InDCIEM initiated a critical reevaluation of the K-S model using digital computers to control the dives and specially-designed Doppler ultrasonic bubble detectors to evaluate the severity of the dive profiles. In short, if we ascend without outguessing the nitrogen dissolved during diving, we may get taables sickness.