FINES FRACTION BY WEIGHT OF PAPER STOCK BY WEST SCREENING

• This method is designed to measure the weight percent fines content of paper stock or of pulp samples by means of a single-screen classifier.
• A modified procedure permits the use of the apparatus to measure the tendency of the fines fraction to be retained by the fiber fraction under graduated turbulent conditions.
• Separation of suspended particles of different shapes and sizes by wet screening may be accomplished using various devices.
• This technique may be used to measure the relative tendency of the fines fraction to stay with the fiber rather than to follow the water into the filtrate under graduated turbulence in simulation of paper machine conditions.
• Determination of fines retention is of particular importance in determining the effect of graduated turbulence in the evaluation of additive materials such as retention aids.

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• Production Manager.
• Technical Manager.
• Researchers.
• Laboratory Personal.