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Preparation and Characterization of Analytical Reference Minerals.

PB83114769

Publication Date	1978
Personal Author	Graf, J. L.; Ase, P. K.; Draftz, R. G.
Page Count	221
Abstract	The preparation and characterization of analytical reference minerals for monitoring of workplace contaminants are discussed. The purity, particle size, and characterization of 18 reference minerals are summarized. The abundance, sites of occurrence, and purity of material deposits of the 18 reference minerals are described, and mineral specimen sources obtained from mineral and industrial suppliers, museums, the National Stockpile synthesis, and field sampling are listed. Cristobalite and tridymite synthesis and phase confirmation analyses are described. Selection procedures of the best mineral samples as standards by macroscopic evaluation, polarized light microscopy (PLM), x-ray diffraction, and differential thermal analysis are summarized. Beneficiation procedures to remove residual impurities and size reduction to desired particle size are described. Two sizing methods, optical microscopy and MICROTRAC analysis, which were used to monitor particle size distribution, are described and results are summarized. PLM, which identified and quantitated mineral phase impurities, is described and results are summarized along with x-ray diffraction results.
Keywords	Environmental surveys Industrial medicine Minerals Gas analysis Hazardous materials Chemical analysis Particle size distribution X ray diffraction Air pollution Air pollution detection Toxic substances Occupational safety and health
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	IIT Research Inst., Chicago, IL.; National Inst. for Occupational Safety and Health, Cincinnati OH.
Document Type	Technical Report
NTIS Issue Number	198303
Contract Number	PHS-NIOSH-210-75-0043

Preparation and Characterization of Analytical Reference Minerals.

Preparation and Characterization of Analytical Reference Minerals.
PB83114769

Publication Date	1978
Personal Author	Graf, J. L.; Ase, P. K.; Draftz, R. G.
Page Count	221
Abstract	The preparation and characterization of analytical reference minerals for monitoring of workplace contaminants are discussed. The purity, particle size, and characterization of 18 reference minerals are summarized. The abundance, sites of occurrence, and purity of material deposits of the 18 reference minerals are described, and mineral specimen sources obtained from mineral and industrial suppliers, museums, the National Stockpile synthesis, and field sampling are listed. Cristobalite and tridymite synthesis and phase confirmation analyses are described. Selection procedures of the best mineral samples as standards by macroscopic evaluation, polarized light microscopy (PLM), x-ray diffraction, and differential thermal analysis are summarized. Beneficiation procedures to remove residual impurities and size reduction to desired particle size are described. Two sizing methods, optical microscopy and MICROTRAC analysis, which were used to monitor particle size distribution, are described and results are summarized. PLM, which identified and quantitated mineral phase impurities, is described and results are summarized along with x-ray diffraction results.
Keywords	Environmental surveys Industrial medicine Minerals Gas analysis Hazardous materials Chemical analysis Particle size distribution X ray diffraction Air pollution Air pollution detection Toxic substances Occupational safety and health
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	IIT Research Inst., Chicago, IL.; National Inst. for Occupational Safety and Health, Cincinnati OH.
Document Type	Technical Report
NTIS Issue Number	198303
Contract Number	PHS-NIOSH-210-75-0043