Mk 15 Mod 0 Alternate Carbon Dioxide Absorbent Materials

摘要

A comparative study of Draegersorb, LimePak and HP Sodasorb carbon dioxide absorbents within the MK 15 Mod O Underwater Breathing Apparatus (MK 15) was performed at the Navy Experimental Diving Unit. Draegersorb and LimePak appeared to be marginally more effective than HP Sodasorb. However, their usefulness to extend the MK 15 canister duration may be limited because of the wide variability of time to reach the arbitrarily determined canister breakthrough of 3.8 mmHg carbon dioxode (0.5% SEV) though the oxygen consumption rates were similiar, VO rates were similar, VO 1.1/min. The polypropylene moisture absorbent pads are a suitable replacement pad for the MK 15 and can be reused.