TAPPI T 232 cm-13, Fiber length of pulp by projection, provides a classical, non-automated procedure for determining the weighted average fiber length of pulp samples. The method covers specimen preparation, projection equipment, image grids, fiber counting, calculations, reporting, precision, safety considerations, and related references. It is intended for pulp and paper laboratories that need a benchmark measurement for comparison with automated fiber-length methods.
This digital PDF edition is revised and effective as of April 30, 2013, and includes diagrams, calculation tables, correction guidance, reporting requirements, and keywords.
Application Scope: Suitable for laboratory quality control, pulp characterization, paper manufacturing research, and comparative evaluation of fiber-length measurement methods.
