Manganese ores — Determination of metallic iron content (metallic iron content not exceeding 2 %) — ...
This second edition cancels and replaces the first edition (i.e. ISO 621-1975). Specifies principle, reagents, apparatus, sample, procedure and expression of results.
Phosphoric acid for industrial use — Determination of calcium content — Titrimetric method
The general method is applicable to phosphoric acid not containing polyphosphoric acids and to products having a calcium content equal to or greater than 0.020 % (m/m). In special cases a preliminary hydrolysis of polyphosphoric acids is carried out by prolonged boiling in the presence of hydrochloric acid. Precipitation of calcium as calcium oxalate at pH 4 0.3, filtration of the precipitate,…
Manganese ores — Determination of vanadium content — Titrimetric method and phosphotungstovanadate p...
Method I is applicable to manganese ores having vanadium contents greater than 0.05 % (m/m), method II is applicable to manganese ores having vanadium contents less than 0.05 % (m/m). This second edition cancels and replaces the first edition (i.e. ISO 553-1975). Should be read in conjunction with ISO 4297.
This second edition cancels and replaces the first edition (i.e. ISO 548-1975). Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results.
Aluminium and aluminium alloys — Determination of zinc content — Flame atomic absorption spectrometr...
The method is applicable to products having zinc contents between 0,002 and 6 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Wood — Determination of radial and tangential shrinkage
Specifies a method which determines the linear dimensions of test pieces after drying at a moisture content in equilibrium with the normal environment and at a moisture content equal to or greater than the saturation point of the cellular wall of wood.
