NBS Special Publication, Issues 411-415U.S. Government Printing Office, 1974 |
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Page 198
... diameter and up . The other common type of smoke aerosol sensor is the optical type . This type sends a pencil beam of light into a chamber that is protected from stray light but where smoke is allowed to enter and detects the presence ...
... diameter and up . The other common type of smoke aerosol sensor is the optical type . This type sends a pencil beam of light into a chamber that is protected from stray light but where smoke is allowed to enter and detects the presence ...
Page 240
... diameter are compared in table 1 with determinations in other lab- oratories . Diameter nm Table 1. Comparison of average ( or modal ) diameters of Dow Polystyrene Latex . Method Particle by particle light scattering ( this work ) a ...
... diameter are compared in table 1 with determinations in other lab- oratories . Diameter nm Table 1. Comparison of average ( or modal ) diameters of Dow Polystyrene Latex . Method Particle by particle light scattering ( this work ) a ...
Page 19
... diameter are compared in table 1 with determinations in other lab- oratories . Table 1. Comparison of average ( or modal ) diameters of Dow Polystyrene Latex . Method Particle by particle light scattering ( this work ) Major population ...
... diameter are compared in table 1 with determinations in other lab- oratories . Table 1. Comparison of average ( or modal ) diameters of Dow Polystyrene Latex . Method Particle by particle light scattering ( this work ) Major population ...
Page 21
... diameters in the respirable size range ( 0.05 μm to 5 μm ) although the techniques described below can be modified to ... diameter range from 0.2 μm to 4 um . Theoretical calculations for spheres have shown that the 21 Light Scattering ...
... diameters in the respirable size range ( 0.05 μm to 5 μm ) although the techniques described below can be modified to ... diameter range from 0.2 μm to 4 um . Theoretical calculations for spheres have shown that the 21 Light Scattering ...
Page 25
... diameter of the laser beam , 0.14 mm , and the diameter of the sample stream 0.1 mm , and it has a volume of 1.5 x 10-5 cm3 . Therefore , concentrations as high as 2 × 104 particles / cm3 can be measured without coincidence effects ...
... diameter of the laser beam , 0.14 mm , and the diameter of the sample stream 0.1 mm , and it has a volume of 1.5 x 10-5 cm3 . Therefore , concentrations as high as 2 × 104 particles / cm3 can be measured without coincidence effects ...
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