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DIN 38406-23:1993-12

Отменен
German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonium-nitrogen by flow analysis (E 23) — 18 стр.
ICS
13.060.30 Sewage. Including sewage water disposal and treatment / Сточные воды. Включая удаление и очистку сточных вод