Tubular fluorescent lamps for general lighting service (IEC 60081:1984 4th edition and Amendment 1 (1987) Amendment 2 (1988) and Amendment 3 (1992)); German version EN 60081:1989 + A3:1993— 179 стр.
Water quality; fresh water algal growth inhibition test with Scenedesmus subspicatus and Selenastrum capricornutum (ISO 8692:1989); German version EN 28692:1993— 15 стр.
Tubular fluorescent lamps for general lighting service (IEC 60081:1984 4th edition and Amendment 1 (1987) Amendment 2 (1988) and Amendment 3 (1992)); German version EN 60081:1989 + A3:1993— 179 стр.
German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of green algae to the toxicity of waste water (Scenedesmus chlorophyll fluorescence test) by way of dilution series (L 33)— 12 стр.
