MAP20100002827Discussion on analytical techniques for quartz (1972: Ohio)Proceedings roundtable discussion on analytical techniques for quartz : december 6-7, 1972. — Ohio : NIOSH : American Conference of Governmental Industrial Hygienists, [1973?]VIII, 152 p. ; 28 cm.Fondo donado por el Sr. Enrique González Fernández, del INSHTSumario: X-ray diffraction -- Energy dispersive x-ray diffraction technique -- Infrared spectroscopy -- X-ray diffracttion -- Infrared spectroscopy -- X-ray diffraction -- Exo-electron emission -- Differential thermal analysis -- X-ray diffraction -- Colorimetric analysis -- The NBS standard reference material program -- The NIOSH proficiency analytical testing program -- A field study of three North Carolina mineral processing plants. Free silica analysis -- Peak height measurements for 10 ampes with a counting time of 100 seconds at the maximum peak position -- Peak height measurements for 10 samples using a 500 second scan at a scan sate of 1/8 degree a minute -- Effects of collodion coating on peak height measurements -- Comparison of standard deviation in ug quartz derived using various instrumental conditions -- Comparison of reults on one sample using both GE & Philips units with carying receiving slit widths -- Analysis of quartz standards by the energy-dispersive powder diffraction method -- Ratios of intensities of quartz diffraction lines -- Determination of quartz in fixed amounts of coal dust on silver membranes -- Determination of quartz in varying amounts of coal dust on silver membranes -- Foundry dust analysis for quartz by DTA micro-analysis and x-ray diffraction -- Analysis of selected commercial talc samples by DTA micro-analysis -- Fre silica analysis of trap rock sample -- Spectrophotometric determination of free silica in a quartz-kaolin mixture -- Spectrophotometric determination of free silica in trap rock samples of <5 mg -- Free silica in human lungs. General urban population -- Free silica in lungs of deceased coal miners -- Free silica analyses of samples from a feldspar plant -- Free silica analyses of samples from a granite shed -- Free silica analyses os samples from a pyrophylite plant1. Contaminantes químicos. 2. Polvo de cuarzo. 3. Rayos X. 4. Difracción. 5. Control de la contaminación. 6. Higiene industrial. I. National Institute for Occupational Safety and Health. II. American Conference of Governmental Industrial Hygienists. III. Title.
FUNDACIÓN MAPFRE. Centro de Documentación
FUNDACIÓN MAPFRE. Centro de Documentación — Signature: MAP - 872 DIS PRO — Record number: 048412