User:Bosef1/Copper number

Coppper number (abbreviated "Cu#") is a parameter used to evaluate the quality of paper. It indicates the amount of metallic copper generated when paper is mixed with water containing copper sulfate under specific test conditions.

Background
copper no. is defined as the no. of grams of metalic copper (as cu2o )

Use In Industry
Copper number may be one of the parameters used when specifying paper. For example, copper number is one of the parameters of the acceptance criteria used by the United States Government Printing Office.