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DIN 38409-52:1987-11

Отменен
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of oxygen depletion in after n days (H 52) — 8 стр.
DIN 38409-52:1987-11
Отменен
DIN EN 1899-2:1998-05
Действует