TAPPI UM 203 PDF
TAPPI UM 203 PDF
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TAPPI UM 203 PDF

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Freeness of pulp (Williams tester)

TAPPI UM 203 – Freeness of pulp (Williams tester)

The Williams freeness tester provides a means of measuring freeness of stock from a beater or other refining equipment. The freeness is measured as the time (seconds) for drainage of 3 g of pulp in 1 L of water (0.3%consistency) through an 80-mesh wire screen.

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Published byPublication DateNumber of Pages
TAPPI04/15/2015