1966 Volume 39 Issue 10 Pages 2063-2066
A recording, photometric, particle-size analyzer has been developed which is useful in measuring the particle-size distributions of powdered materials in the subsieve range. Provision for continuously moving the optical system upwards allows for rapid analysis of the finer particles, while by moving the system downwards accurate analysis of the particles with a larger density is possible. It was ascertained that the movement of the optical system has no effect on the results obtained.
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