Laboratory screening of pulp (MasterScreen-type instrument), Test Method TAPPI/ANSI T 274 sp-13



Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual.

Purchase of electronic (downloadable) documents made at www.tappi.org by credit cards, followed by instant download CANNOT be cancelled. We do not offer refunds on electronic download documents.

A general purpose practice for screening pulp using a specific screening device is described, which separates from a slurry of pulp fibers a contaminant fraction with size dimensions which are significantly greater than the diameter of a pulp fiber.

Separated contaminants include, but are not limited to, shives in virgin fibers, or macro stickies that are captured by the barrier screen plate, scleroids, dirt, stone cells, plastics, pitch, white pitch, and other contaminants in virgin and recycled fibers.

There are numerous screening instruments used for separation, classification, or quantitation of contaminants from pulp fibers, including T 278 “Pulp Screening (Valley-Type Screening Device)” and T 275 “Screening of Pulp (Sommerville-Type Equipment).” This procedure covers a specific screening procedure to concentrate contaminants by fiber removal, and does not cover use of screens for pulp size classification.

While this practice does not describe the specific procedure required to quantitatively measure the contaminant fraction separated, it should be noted that where this is done by the user of this practice, slightly different quantitative results may be found among or between results calculated using the device described in this Practice and the various devices in 1.3.

Laboratory screening of pulp (MasterScreen-type instrument)
Laboratory screening of pulp (MasterScreen-type instrument), Test Method TAPPI/ANSI T 274 sp-13
49.00

New Releases

 

TAPPI Press Catalog




See More

 

Handbook For Pulp and Paper Technologists (The SMOOK Book), Fourth Edition

The best-selling text to introduce the entire technology of pulp and paper manufacture.

Purchase

 

Nanocellulose End Users Guide and Perspectives Set


Together, the two books form a complete set, and provide an in-depth study of the market for cellulose nanomaterials with critical insights for producers, processors, and end users.

Purchase

 

Check our newest additions.


TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries. 

See More

   
 

Available for Purchase – Conference Proceedings


TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.

See More