Higher purity copper cathode—Determination of silicon content—Molybdenum blue spectrophotometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of silver content—Separation and preconcentration with sulfhydryl cotton-flame atomic absorption spectrometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of sulphur content—Combustion-potassium iodate titrimetric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of bismuth content—Hydride generation-atomic fluorescence spectrometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of chromium, manganese and cadmium contents—Zeeman effect electrothermal atomic absorption spectrometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of antimony content-2-[(-5-bromo-2-pyridyl)azo]-5-diethylaminophenol spectrophotometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of arsenic content—Heteropoly arsenomolybdic acid-crystal violet spectrophotometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of phosphorus content—Heteropoly phosphato-vanadato-molybdicacid-crystal violet spectrophotometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of iron, cobalt and lead contents—Zeeman effect electrothermal atomic absorption spectrometric method

NEPLATNÁ vydána dne 14.12.1991

Higher purity copper cathode—Determination of nickel content—Zeeman effect electrothermal atomic absorption spectrometric method

NEPLATNÁ vydána dne 14.12.1991