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Analysis of Steam Formation and Migration in Firefighters’ Protective Clothing Using X-Ray Radiography

Keiser C., Wyss P., Rossi R. M.

International Journal of Occupational Safety and Ergonomics

2010

Vol. 16, No. 2

217--229

X-ray radiography was used to quantify evaporation and moisture transfer in a multilayer firefighter protective clothing system with defined wetted layers exposed to low thermal radiation. Evaporation was faster and took place at higher temperatures if the moisture was located in the outer layers of the clothing system. Moisture that evaporated in the outer layers of the clothing system was found to move inwards and condense in the inner layers and on the cap of the measurement cell. Results found in this study correlated well with the findings of our former study based on simple temperature distribution measurements to determine moisture transfer in protective clothing layers at low level thermal radiation.

Performance of Firefighters’ Protective Clothing After Heat Exposure

Rossi R. M., Bolli W., Stampfli R.

International Journal of Occupational Safety and Ergonomics

2008

Vol. 14, No. 1

55--60

Heat and mechanical protection properties of 6 fabric combinations commonly used in firefighters’ protective clothing were assessed before and after different heat treatment. It was shown that after heat exposure, the values obtained were generally lower than in the original state. The mechanical properties of the materials were more affected by heat than by heat protective properties. In 2 cases, degradation started before a visible change in the material could be observed, which might be potentially dangerous for the end user who will not realize the alteration of the material.