Standard Method for Particle-Size Analysis of Whiteware Clays (Withdrawn 2002)
1.1 This method covers the quantitative determination of the distribution of particle sizes in kaolins and ball clays in the size range 44 to 0.1 [mu]m by the sedimentation process. Particles are allowed to settle under normal gravitational forces and concentrations of particles in the size range 44 to 2 [mu]m are measured using a hydrometer. Centrifuging is used to cause the smaller particles to settle more rapidly so that concentrations of particles in the size range 2 to 0.1 [mu]m may be measured using a pipet.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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