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DIN 38405-29:1994-11

Действует
German standard methods for the examination of water, waste water and sludge - Anions (group D) - Part 29: Spectrometric determination of nitrate with sulfosalicylic acid (D 29); ISO 7890-3:1988, modified — 11 стр.
DIN 38405-29:1994-11
Действует