Abstract / scope
Describes the determination of density at 20 °C by means of a hydrometer. The correspondence between density and concentration of aqueous solutions is given in a table. Has also been approved by the IUPAC.
ISO 2990:1974Withdrawn
Nitric acid for industrial use — Evaluation of the nitric acid concentration by measurement of density
Acide nitrique à usage industriel — Évaluation de la concentration en acide nitrique par mesurage de la masse volumique