Investigations of the raw material in hard-coal-mining; determination of the particle-size-distribution <kleiner>60 µm by ultrasonic-microsieve-analysis— 8 стр.
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of filterable matter and the residue on ignition (H 2)— 12 стр.
German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of the settleable matter by volume in water and waste water (H9)— 7 стр.
German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of the settleable matter by mass concentration in water and waste water (H10)— 5 стр.
Investigations of the raw material in hard-coal-mining; determination of the particle-size-distribution <kleiner>60 µm by ultrasonic-microsieve-analysis— 8 стр.