TAPPI T 241 : CM 83
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
MANGANESE IN PULP
23-07-2020
12-01-2013
Describes the determination of manganese in pulp. The pulp is ashed at 575 deg C and the ash dissolved in nitric acid. The manganese is oxidized with sodium periodate to permanganate and determined colorimetrically by absorbence at 525 nm. As a contaminant in pulp, manganese acts as a catalyst in oxidizing cellulose.
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