TAPPI T 233 CM 2006 provides procedures for determining the weighted average fiber length of pulp using Clark or Bauer-McNett classifiers. This seven-page PDF test method covers scope, significance, required apparatus, sampling and specimen preparation, classification procedures, calculations, reporting, precision, keywords, additional technical information, and equipment appendices.
The method is intended for pulp and paper laboratories, quality control personnel, researchers, and technical professionals evaluating fiber classification and its relationship to paper strength properties. It includes screen selection guidance, operating conditions, specimen handling, result calculations, reporting recommendations, and descriptions of both classifier types.
Application Scope: Suitable for laboratory and quality-control evaluation of pulp fiber length distributions using Clark or Bauer-McNett classification equipment.