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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Repetitive Factor and depth give you the No-D limit at that depth. Known as an M-valueit indicates the maximum tension before bubbles are thought to form during ascent.

Then, thousands of verification taboes and many improvements of the theory have been performed and the dive table for air diving was released in No, create an account now.

DCIEM Sport Diving Tables

The numbers assigned to the tissues are derived from theory and experiment. Benefits of registering include Ability to post and comment on topics and discussions.

They went through several variations of their air decompression model, improving the safety of the model after each iteration. Slow tissues don’t have time during a recreational dive to equilibrate to ambient pressure.

How do you read DCIEM Tables??

dceim Your name or email address: Share This Page Tweet. In a serial model, the compartments outgas to each other even as they ongas from other tissues of higher nitrogen tension.


The purpose of decompression theory is to determine how long and how deep you can dive without undue risk of DCS. Decompression tissues might be similar structures scattered all over your body.

Outline of Decompression Theory. Joining is quick and easy. There is a maximum nitrogen tension for tissues. If you multiply the repetitive factor obtained from table B, by the actual bottom time of your Repet dive you can then obtain an “Effective Bottom Time” or EBT which you can use to re-enter table A. WalterNov 19, Decompression tables and computers account for what we currently hope are most of the possibilities.

Known as an M-value, it indicates the maximum tension before bubbles are thought to form during ascent.

Charlie99Nov 19, Experiments and educated guestimation have led to some generalizations about which areas of the body are faster or slower than others. M stands for maximum Faster dciek have higher M-values and will tolerate higher supersaturating ratios than slower tissues.

In short, if we ascend without outguessing the nitrogen dissolved during diving, we may get decompression sickness.

How do you read DCIEM Tables?? | ScubaBoard

Time and depth dive you a “Rep. A Free photo gallery to share your dive photos with the world. RandyNov 19, Group and Surface interval time gives you a Repetitive Factor.

Areas well dclem by blood like lungs and abdominal organs absorb nitrogen faster than other tissues. What Are Serial and Parallel Models? I can get as far as getting the No-D limits for a second dive.


No body can figure it out. Don’t plan dives with these tables unless you learn proper proceedures from someone familiar with them. PatHNov 19, Search Media New Media. Because fatty tissues hold more nitrogen than watery tissues, it ddiem longer for nitrogen to fill and leave fatty tissue. Exact halftimes are not known for every single anatomic structure in the body. The nitrogen we inhale is dissolved in our tissues under high pressure. Fast tissues ongas and offgas in shorter halftimes rables slow tissues.

DarkHorseNov 19, They will still have a lower pressure than the surrounding water.

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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. Welcome to ScubaBoard, the world’s largest dviem diving community. Most dive tables are based on parallel decompression models.