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Evaporative Losses from Semi-Volatile Mist Samples, Final Performance Report.

PB2005100147

Publication Date	2004
Personal Author	Raynor, P. C.
Page Count	30
Abstract	Metalworking fluid mists pose potential respiratory, cancer, and dermatological concerns for machinists and other exposed workers. Thus, measuring mist concentrations accurately for regulatory and health study purposes is important. However, most metalworking fluids are semi-volatile. This leads to the possibilty that collected mist droplets can evaporate from sampling filters after they have been captured. If this evaporation occurs, mist concentrations wil be underestimated. The purpose of this research was to utiize numerical modeling, laboratory experimentation, and field measurements to determine important factors that might influence the extent of evaporative losses of metalworking fluid mist from sampling filters. Numerical models were developed (1) to predict the evaporation of droplets from the point of generation until sampling onto a fiter, and then (2) to predict the amount of the sampled mist that evaporated from the fiters.
Keywords	Evaporation Mist Metal working Occupational safety and health Performance evaluation Sampling Filters Drops(Liquids) Environmental exposure Health effects Cancer Respiratory systems Dermatology Industrial hygiene Laboratory tests Metalworking fluids Mist concentrations
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Minnesota Univ., Minneapolis. School of Public Health.; National Inst. for Occupational Safety and Health, Washington, DC.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200501

Evaporative Losses from Semi-Volatile Mist Samples, Final Performance Report.

Evaporative Losses from Semi-Volatile Mist Samples, Final Performance Report.
PB2005100147

Publication Date	2004
Personal Author	Raynor, P. C.
Page Count	30
Abstract	Metalworking fluid mists pose potential respiratory, cancer, and dermatological concerns for machinists and other exposed workers. Thus, measuring mist concentrations accurately for regulatory and health study purposes is important. However, most metalworking fluids are semi-volatile. This leads to the possibilty that collected mist droplets can evaporate from sampling filters after they have been captured. If this evaporation occurs, mist concentrations wil be underestimated. The purpose of this research was to utiize numerical modeling, laboratory experimentation, and field measurements to determine important factors that might influence the extent of evaporative losses of metalworking fluid mist from sampling filters. Numerical models were developed (1) to predict the evaporation of droplets from the point of generation until sampling onto a fiter, and then (2) to predict the amount of the sampled mist that evaporated from the fiters.
Keywords	Evaporation Mist Metal working Occupational safety and health Performance evaluation Sampling Filters Drops(Liquids) Environmental exposure Health effects Cancer Respiratory systems Dermatology Industrial hygiene Laboratory tests Metalworking fluids Mist concentrations
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Minnesota Univ., Minneapolis. School of Public Health.; National Inst. for Occupational Safety and Health, Washington, DC.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200501