German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of permanganate index (H 5); ISO 8467:1986 modified— 11 стр.
Water-tube boilers and auxiliary installations - Part 12: Requirements for boiler feedwater and boiler water quality; German version EN 12952-12:2003— 16 стр.
German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of permanganate index (H 5); ISO 8467:1986 modified— 11 стр.
German standard methods for the examination of water, waste water and sludge - Anions (group D) - Part 33: Determination of iodide by spectrometry (D 33)— 10 стр.
