Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of moist...
Specifies a gravimetric method for the determination of moisture content of cryolite. Describes the principle, the apparatus, the procedure, gives the expression of results and the test report. An annex lists the ISO Publications of concern.
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) — Determination of f...
Applicable to products the F content of which is equal to or more than 0.5 mg/kg. Specifies the separation of the element from a test portion by steam distillation in a phosphoric acid medium. Formation of a blue-coloured complex with a combined reagent alizarin complexone/lanthanum nitrate in a buffered medium at the pH of 4.6. Addition of acetone to increase the stability of the complex and the…
Aluminium oxide primarily used for the production of aluminium — Determination of calcium content — ...
This method is applicable to products having Ca contents greater than 0,003 % (m/m). The principle consists in dissolution of a test portion by the influence of hydrochloric acid under pressure. Addition of sodium ions to promote and to stabilize the emission of calcium, and of lanthanum ions or triethanolamine to increase the sensitivity. Aspiration of the solution into an acetylene-dinitrogen…
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer metho...
Applicable to products having a water content between 0.01 % (m/m) and 0.5 % (m/m). Is supplemented by ISO 3700 and intended for reference purposes. Bases on addition of a cooled test portion to cooled dry pyridine containing 5 % of anhydous hydrogen fluoride. The apparatus for measuring the test portion and titration and the measuring vessel are shon in figures. Subsequent electrometric…
Sodium fluoride primarily used for the production of aluminium — Determination of silica content — R...
Specifies a spectrophotometric method, using the reduced molybdosilicate, for determining the silica content of sodium fluoride. Applicable to products of which the phosphorus pentoxide content does not exceed 0,02 % (m/m).
Radioactive materials — Packagings — Test for contents leakage and radiation leakage
Specifies some methods for prototypes of transport packaging, but may not be considered universally applicable. The leak test ist provided for the containment system of containers and type A packaging for low specific activity liquid or powder sources. The homogeneity test refers to the outer surface of the shielding or the whole packaging. Both methods are inappropriate when the containment…
