ISO 9276-3:2008

Current Revision
Representation of results of particle size analysis - Part 3: Adjustment of an experimental curve to a reference model

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ISO 9276-3:2008

Representation of results of particle size analysis - Part 3: Adjustment of an experimental curve to a reference model

PUBLISH DATE 2008
ISO 9276-3:2008

ISO 9276-3:2008 specifies methods for the adjustment of an experimental curve to a reference model with respect to a statistical background. Furthermore, the evaluation of the residual deviations, after the adjustment, is also specified.

The reference model can also serve as a target size distribution for maintaining product quality.

ISO 9276-3:2008 specifies procedures that are applicable to the following reference models:

  • a) normal distribution (Laplace-Gauss): powders obtained by precipitation, condensation or natural products (pollens);
  • b) log-normal distribution (Galton MacAlister): powders obtained by grinding or crushing;
  • c) Gates-Gaudin-Schuhmann distribution (bilogarithmic): analysis of the extreme values of the fine particle distributions;
  • d) Rosin-Rammler distribution: analysis of the extreme values of the coarse particle distributions;
  • e) any other model or combination of models, if a non-linear fit method is used.

ISO 9276-3:2008 can substantially support product quality assurance or process optimization related to particle size distribution analysis.

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