Abstract / scope
The principle consists in the determination of density at 20 °C by means of a hydrometer. Evaluation of the corresponding sulphuric acid concentration by means of the table. - Replaces ISO Recommendation R 911-1968.
ISO 911:1977Withdrawn
Sulphuric acid for industrial use — Evaluation of sulphuric acid concentration by measurement of density
Acide sulfurique à usage industriel — Évaluation de la concentration en acide sulfurique par mesurage de la masse volumique