... The PL10-00 Fiber Classifier is the equipment used for measuring the weight-average fiber ... equipment used for measuring the weight-average fiber length of pulp fiber according to screening method by pulp and paper-making laboratory ... 20min ± 10s, adjustable automatic control time.4) Sieving plate standard: 10 mesh, 14 mesh, 28 mesh, 48 mesh, ... mesh is mainly for fiber grading. Paper Laboratory Equipment