German standard methods for the examination of water, waste water and sludge; anions (group D); photometric determination of chromium(VI) using 1,5-diphenylcarbonohydrazide (D 24)— 10 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.
Water quality - Determination of chromium(VI) - Photometric method for weakly contaminated water (ISO 18412:2005); German version EN ISO 18412:2006— 13 стр.
Characterization of waste - Analysis of eluates - Determination of pH, As, Ba, Cd, CI<(hoch)->, Co, Cr, Cr(VI), Cu, Mo, Ni, NO<(Index)2><(hoch)->, Pb, total S, SO<(Index)4>2<(hoch)->, V and Zn; German version EN 12506:2003— 19 стр.