Method for chemical analysis of beryllium ores—Determination of beryllium content-catalytic polarographic method

NEPLATNÁ vydána dne 17.6.1998

Methods for chemical analysis of Tantalum and Niobium ores—Determination of Tantalum content—Preconcentration and separation with silica gel-Butyl rhodamine B extraction photometric method

NEPLATNÁ vydána dne 17.6.1998

Methods for chemical analysis of Tantalum and Niobium ores—Determination of Niobium content—Preconcentration and separation with silica gel—Thiocyanate extraction photometric method

NEPLATNÁ vydána dne 17.6.1998

Method for chemical analysis of Zirconium ores—Determination of Zirconium (Hafnium) content—Xylenol orange photometric method

NEPLATNÁ vydána dne 17.6.1998

Method for chemical analysis of Zirconium ores—Determination of Zirconium and Hafnium contents—X-ray fluorescence spectrometric method

NEPLATNÁ vydána dne 17.6.1998

Method for chemical analysis of rare earth ores—Determination of separated rare earth content—Preconcentration and separation by cation exchange resin,ICP-AES method

NEPLATNÁ vydána dne 17.6.1998

Method for chemical analysis of rare earth ores—Determination of scandium content—ICP-AES method

NEPLATNÁ vydána dne 17.6.1998

Methods for analysis of noble metals in geochemical samples—General rules and regulations

NEPLATNÁ vydána dne 17.6.1998

Methods for analysis of noble metals in geochemical samples—Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method

NEPLATNÁ vydána dne 17.6.1998

Methods for analysis of noble metals in geochemical samples—Determination of palladium content-Preconcentration by thiourea-Graphite furnace atomic absorption spectrophotometric method

NEPLATNÁ vydána dne 17.6.1998