BS ISO 10775:1995 Paper, board and pulps. Determination of cadmium content. Atomic absorption spectrometric method
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This International Standard specifies a method for the determination of traces of cadmium in all types of paper, board and pulp, including products containing recycled fibre, that can be wet combusted in nitric acid as specified in this International Standard.
The lower limit of the determination depends on the equipment used and is normally about 10 ug/kg. Cad-mium present in pigments and fillers that do not dissolve in nitric acid under the conditions of test may not be determined quantitatively.
NOTE 1 It has been claimed that the dissolution of cadmium from pigments other than calciucarbonate is incomplete by a few per cent.
Precision; Determination of content; Chemical analysis and testing; Test specimens; Test equipment; Paper; Board (paper); Paper pulp; Atomic absorption spectrophotometry; Spectrophotometry; Specimen preparation; Paper products; Cadmium