Copper
Sodium
Calcium
Determination of content
Paper
Chemical analysis and testing
Potassium
Atomic absorption spectrophotometry
Magnesium
Board (paper)
Emission spectrophotometry
Spectrophotometry
Paper pulp
Manganese
Specimen preparation
Iron
Link: BS ISO 12830:2019 Paper, board, pulps and cellulose nanomaterials. Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium
Source: BSI Standards
