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DIN 38409-51:1987-05

Отменен
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of biochemical oxygen demand after n days, BOD<(Index)n>, using the dilution method (H 51) — 17 стр.
ICS
13.060.30 Sewage. Including sewage water disposal and treatment / Сточные воды. Включая удаление и очистку сточных вод