Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
8 results returnedSearch results
- 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
