Browse TRAIL Inventories

Determination by the dropping-Mercury-electrode procedure of lead, cadmium, and zinc in samples collected in industrial-hygiene studies

Standard methods for measuring extent of atmospheric pollution

Filter-paper method for obtaining dust-concentration results comparable to impinger results

Control of silicosis hazard by substitution of quartz-free or low-quartz material for sand under mine locomotives

Midget microprojector for dust determinations

Dust-counting cells

Size of smallest dust particles revealed by various microscopic systems

Relation between and precision of dust counts (light- and dark-field) from simultaneous impinger, midget-impinger, electric-precipitator, and filter-paper samples


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