TAPPI T 243 : CM 83
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
COPPER IN PULP
07-08-2024
12-01-2013
Describes a procedure for the determination of copper in pulp. The pulp is ashed, the residue is treated with hydrochloric acid, and color is developed with diethyldithiocarbamate. The absorbence of a carbon tetrachloride extract is measured at 440 nm against that of a reference extract from a standard copper solution. Copper, if present in more than trace amounts, may interfere with the color of dyes to be used in the pulp.
| DocumentType |
Standard
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy |
| TAPPI T 210 : 2013 | SAMPLING AND TESTING WOOD PULP SHIPMENTS FOR MOISTURE |
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