DIN 38409-23:1980 German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of methylen blue active and bismut active substances (H23)
German standards methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of methylen blue active and bismut active substances (H 23)Diese Norm wurde gemeinsam mit der Fachgruppe Wa
DIN 38409-23:1980 history
2010DIN 38409-23:2010-12 German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 23: Determination of bismut active substances (H 23)
2010DIN 38409-23:2010 German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 23: Determination of bismut active substances (H 23)
1980DIN 38409-23:1980 German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of methylen blue active and bismut active substances (H23)