Gold—Determination of silver, copper, iron, lead, antimony and bismuth contents—Emission spectrometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of silver content—Silver chloride precipitation-flame atomic absorption spectrometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of copper and gold contents—Flame atomic absorption spectrometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of iron, lead and bismuth contents—Flame atomic absorption spectrometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of antimony content—2-(5-bromo-2-pyridylazo)-5-diethylaminophenol spectrophotometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of carbon content—Combustion-conductometric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of sulphur content—Combustion-potassium iodate titrimetric method

NEPLATNÁ vydána dne 31.3.1989

Silver—Determination of copper, bismuth, iron, lead, gold and antimony contents—Emission spectrometric method

NEPLATNÁ vydána dne 31.3.1989

Gallium arsenide epitaxial layer—Determination of carrier concentration—Voltage-capacitance method

NEPLATNÁ vydána dne 31.3.1989

High purity germanium dioxide

NEPLATNÁ vydána dne 31.3.1989