German standard methods for the examination of water, waste water and sludge; physical and physical-chemical parameters (group C); determination of the electrical conductivity (C 8)— 11 стр.
German Standard Methods for Analysing of Water, Waste Water and Sludge; Physical and Physical-chemical Parameters (Group C); Determination of Temperature (C4)— 3 стр.
German standard methods for the examination of water, waste water and sludge; Physical and physical chemical characteristics (group C); Determination of electrical conductivity (C 8)— 9 стр.
German standard methods for the examination of water, waste water and sludge; Physical and physical chemical characteristics (group C); Determination of electrical conductivity (C 8)— 9 стр.