German standard methods for the examination of water, waste water and sludge; cations (group E); determination of nickel by atomic absorption spectrometry (AAS) (E 11)— 13 стр.
German standard methods for the examination of water, waste water and sludge; general information (group A); sampling from barrages and lakes (A 12)— 8 стр.
German standard methods for the examination of water, waste water and sludge; general information (group A); sampling of untreated water and drinking water (A 14)— 11 стр.
German standard methods for the examination of water, waste water and sludge; general information (group A); calibration of analytical methods, evaluation of analytical results and linear calibration functions used to determine the performance characteristics of analytical methods (A 51)— 16 стр.
German standard methods for the examination of water, waste water and sludge; Sludge and sediments (Group S); Digestion using aqua regia for subsequent determination of the acid-soluble portion of metals (S7)— 6 стр.
Methods of soil investigations for agricultural engineering - Chemical laboratory tests - Part 10: Testing and evaluation of water for irrigation— 11 стр.
