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Exposure Estimation Procedure for Powder Handling Operations Based on Dustiness Testing.

PB94108164

Publication Date	1989
Personal Author	Heitbrink, W. A.; O'Brien, D. M.
Page Count	20
Abstract	A dustiness test result may be an indication of the dustiness of a given material and may be used to evaluate the dust exposure potential of powders undergoing a Premanufacturing Notice (PMN) review. The exposure estimation procedure was based on dustiness test results because of difficulties in estimating from physical parameters. The data for the correlation were obtained at one bag filling operation at a plastic resin facility and at a bag filling and bag packing operation at a lead-chromate facility. The correlation between worker dust exposure and dustiness as measured by the MRI and the Heubach dustiness tests was evaluated. The information suggested that reducing the dustiness below about 30, as measured by the MRI dustiness index, does not result in further reduction of worker dust exposure. For facilities with reasonable engineering controls and process equipment, the logic derived in the report will probably result in overestimates of worker dust exposures.
Keywords	Occupational safety and health Dust control Working conditions Powder(Particles) Particulates Chemical industry Plastics industry Exposure Lead compounds Chromates
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 94D - Job Environment 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Engineering Control Technology Branch.
Document Type	Technical Report
NTIS Issue Number	199402

Exposure Estimation Procedure for Powder Handling Operations Based on Dustiness Testing.

Exposure Estimation Procedure for Powder Handling Operations Based on Dustiness Testing.
PB94108164

Publication Date	1989
Personal Author	Heitbrink, W. A.; O'Brien, D. M.
Page Count	20
Abstract	A dustiness test result may be an indication of the dustiness of a given material and may be used to evaluate the dust exposure potential of powders undergoing a Premanufacturing Notice (PMN) review. The exposure estimation procedure was based on dustiness test results because of difficulties in estimating from physical parameters. The data for the correlation were obtained at one bag filling operation at a plastic resin facility and at a bag filling and bag packing operation at a lead-chromate facility. The correlation between worker dust exposure and dustiness as measured by the MRI and the Heubach dustiness tests was evaluated. The information suggested that reducing the dustiness below about 30, as measured by the MRI dustiness index, does not result in further reduction of worker dust exposure. For facilities with reasonable engineering controls and process equipment, the logic derived in the report will probably result in overestimates of worker dust exposures.
Keywords	Occupational safety and health Dust control Working conditions Powder(Particles) Particulates Chemical industry Plastics industry Exposure Lead compounds Chromates
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 94D - Job Environment 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Engineering Control Technology Branch.
Document Type	Technical Report
NTIS Issue Number	199402