ISO 778:2005
Paper, board and pulp — Determination of acid-soluble copper
Reference number
ISO 778:2005
Edition 3
2005-05
© ISO 2024
Withdrawn
Withdrawn (Edition 3, 2005)

Abstract

ISO 778:2005 specifies the procedure for the determination of acid-soluble copper by atomic absorption spectrometry or by plasma emission spectrometry.

It is applicable to all types of paper, board and pulp.

It specifies a method to determine the acid-soluble part of the incineration residue, i.e. that part of the ignition residue obtained after incineration which is soluble in hydrochloric acid. If the residue is completely soluble, the result obtained by the procedure specified in ISO 778:2005 is taken as the total amount of copper in the sample. The limit of determination is normally 0,1 mg/kg of paper, board or pulp, but it depends on the spectrometer used.

General information

  • Status
     : Withdrawn
    Publication date
     : 2005-05
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 3
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 6
    ICS :
    85.040  85.060 
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