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DIN
DIN
DIN 38405-23:1994-10
En Vigor
1994-10-01
German standard methods for the examination of water, waste water and
sludge - Anions (Group D) - Part 23: Determination of selenium by atomic
absorption spectrometry (D 23)
DIN
DIN
DIN 49810-5:1993-04
En Vigor
1993-04-01
General lighting service lamps; bulbs for explosion- and flame-proof portable










