Experiments on pigs were made for determination of safe distance to blast center for a diver using the isolating breathing apparatus IDA-71U and aqualung AVM-5. The animals were placed at the distance 12, 9, 7 and 5 m from the blast center. After the explosion, basic physiological parameters and severity of traumas were monitored. Differences in morphological characteristics of the damage done on the earth and under water were identified. Safe distance was 12 m.
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