ISO 3120:1976Withdrawn

diSodium tetraborates and crude sodium borates for industrial use — Determination of water content — Gravimetric method

Tétraborates disodiques et borates de sodium bruts à usage industriel — Dosage de l'eau — Méthode gravimétrique

Abstract / scope

Heating a test portion in a combustion tube at 250 0C, later at 500 0C. Passing through the liberated water carried by a flow of nitrogen into a tared absorption vessel filled with magnesium perchlorate. Weighing the absorption vessel and determination of the mass of water by difference.