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TAPPI T 265

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Natural Dirt in Wood Chips

Published by Publication Date Number of Pages
TAPPI 01/01/2009 5
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TAPPI T 265 – Natural Dirt in Wood Chips

The purpose of this method is to estimate the amount of natural (wood-derived) dirt in chips. The amount of dirt inthe chips may be reflected in the level of dirt in the finished pulp or in bleaching and screening steps needed to producean acceptable product. The determination is made by examining and classifying chips into categories defined by theultimate contribution to dirt levels in the final product. For sulfite pulps from certain species, a dirt contribution valuestable (Table 1) is provided, which allows the results to be expressed in terms of an index based on square millimeters orequivalent area of black dirt. (See TAPPI T 213 “Dirt in Pulp.”)

Product Details

Published:
01/01/2009
Number of Pages:
8
File Size:
1 file , 450 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus
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