Zobrazeno 1 - 8
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pro vyhledávání: '"H E, BUMSTED"'
Autor:
H. E. Bumsted
Publikováno v:
American Industrial Hygiene Association Journal. 34:150-158
Methods have been developed for the determination by x-ray diffraction of quartz in airbrone dust samples in the milligram range collected in the industrial environment. After preparation, the dust residue is deposited on a Selas silver membrane filt
Autor:
J. C. Wells, H. E. Bumsted
Publikováno v:
Analytical Chemistry. 24:1595-1597
Autor:
H. E. Bumsted
Publikováno v:
American Industrial Hygiene Association journal. 25
A method is described for the direct analysis of air samples collected on filter paper. The method has sufficient sensitivity to be used without any sample concentration for most air samples. A simple method of preparation of filters for use in estab
Autor:
J F, KEPLER, H E, BUMSTED
Publikováno v:
Occupational medicine. 5(1)
Publikováno v:
Industrial health monthly. 11(8)
Publikováno v:
A.M.A. archives of industrial hygiene and occupational medicine. 4(2)
Autor:
J F, KEPPLER, H E, BUMSTED
Publikováno v:
A.M.A. archives of industrial hygiene and occupational medicine. 2(6)
Publikováno v:
American Industrial Hygiene Association journal. 32(2)
While the gravimetric method of assessment of coal dust exposures is superior to the microscopic count method in the ease, speed, and precision of the final measurement, there are shortcomings in the validity of sampling and interpretation. Data and