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DIN 38405-20:1991-09

Отменен
German standard methods for the examination of water, waste water and sludge; anions (group D); determination of the dissolved anions bromide, chloride, nitrate, nitrite, phosphate (ortho-) and sulfate anions in waste water by ion chromatography (D 20) — 23 стр.
DIN 38405-20:1991-09
Отменен
DIN EN ISO 10304-1:2009-07
Действует