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DIN 38409-28:1992-04

Отменен
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of bound nitrogen after reduction with Devarda's alloy and catalytic digestion (H 28) — 10 стр.
ICS
13.060.50 Examination of water for chemical substances / Исследование воды для определения содержания химических веществ