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Critical Heat Stress Evaluation Of Two-Layer Clothing Ensembles And The Contributionof A Full-Face Negative Pressure Respirator, Oclla Michele Fletcher
Critical Heat Stress Evaluation Of Two-Layer Clothing Ensembles And The Contributionof A Full-Face Negative Pressure Respirator, Oclla Michele Fletcher
USF Tampa Graduate Theses and Dissertations
Protective clothing ensembles are worn by workers as a barrier to chemical and physical hazards, but can restrict heat loss and increase worker heat stress. The question of whether a respirator adds to heat stress or strain burden is a continuing concern among occupational health professionals. The purpose of this study was to determine if there are differences in heat stress or strain among the current Toxicological Agent Protective (TAP) ensemble and two ensemble variations used in demilitarization of chemical weapons. Four acclimatized adult males wore five ensembles in a balanced design while walking in a climatic chamber at a …
Apparent Total Evaporative Resistance Values From Human Trials Over A Range Of Heat Stress Levels, Brian Grace
Apparent Total Evaporative Resistance Values From Human Trials Over A Range Of Heat Stress Levels, Brian Grace
USF Tampa Graduate Theses and Dissertations
Clothing can influence heat stress depending on the design and its ability to act as a barrier. The progressive heat stress protocol permitted the collection of data to empirically estimate the apparent total evaporative resistance (Re,T,a). Five different clothing ensembles were evaluated, which included work clothes, cotton coveralls, and three limited-use protective clothing ensembles including a pthesis-barrier ensemble, (Tyvek® 1424), water-barrier, vapor-permeable ensemble (NexGen® LS 417), and a vapor-barrier ensemble (Tychem QC®). The study design called for three metabolic level's: low, moderate, and high (L, M, & H) and three heat stages: compensable, transitional, …