Reference number
ISO 2990:1974
ISO 2990:1974
© ISO 2024
ISO 2990:1974
Nitric acid for industrial use — Evaluation of the nitric acid concentration by measurement of density
Edition 1
1974-04
1974-04
Retirada
Resumen
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.