IRON ORES. DETERMINATION OF MANGANESE CONTENT. FLAME ATOMIC ABSORPTION SPECTROMETRIC METHOD
Edition 1988-01-21

IRON ORES. DETERMINATION OF SULFUR CONTENT. BARIUM SULFATE GRAVIMETRIC METHOD
Edition 1990-05-18

IRON ORES. DETERMINATION OF PHOSPHORUS CONTENT. SPECTROPHOTOMETRIC METHOD OF MOLYBDENUM BLUE.
Edition 1990-05-18

DIRECT REDUCED IRON. DETERMINATION OF METALLIC IRON CONTENT. TITRIMETRIC METHOD.
Edition 1990-12-24

IRON ORES. DETERMINATION OF ACID SOLUBLE IRON (II) CONTENT. TRITIMETRIC METHOD.
Edition 1990-12-24

IRON ORES. DETERMINATION OF COMBINED WATER CONTENT. GRAVIMETRIC METHOD.
Edition 1990-12-24

IRON ORES. DETERMINATION OF HYGROSCOPIC MOISTURE IN ANALYTICAL SAMPLES. GRAVIMETRIC METHOD.
Edition 1990-12-24

DETERMINATION OF SEPIOLITE SIZE.
Edition 1992-07-08

DETERMINATION OF MOISTURE IN SEPIOLITE.
Edition 1992-07-08

DETERMINATION OF BET SPECIFIC SURFACE FOR SEPIOLITIC MATERIALS.
Edition 1994-07-06