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The Association of German Engineers (VDI) with almost 150,000 members, of whom more than a third are students and engineers younger than 33 years of age, is one of the biggest technical- scientific associations in Europe. VDI has extended its activities successfully both nationally and internationally over the years and it has been making great efforts to spread knowledge in the areas related to technologies. As a financially independent, politically unclassified and non-profit organization, it is respected by engineers as well as by professionals and the general public.
Measurement of gaseous immissions; measurement of the sulphur dioxide concentration; conductivity method (Picoflux).
(Messung gasförmiger Immissionen; Messung der Schwefeldioxid-Konzentration; Leitfähigkeits-Verfahren (Picoflux).)
WITHDRAWN published on 1.8.1968
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Gaseous air pollution measurement; determination of nitrogen dioxide and nitrogen monoxide concentration; fundamentals and photometric manual method (Saltzman).
(Messung gasförmiger Immissionen; Messen der Stickstoffdioxid- und Stickstoffmonoxid-Konzentration; Übersicht und manuelles photometrisches Verfahren (Saltzman).)
WITHDRAWN published on 1.11.1972
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Gaseous pollution measurement; measurement of nitrogen monoxide; Oxidation to nitrogen dioxide and measuring by photometric method (Saltzman).
(Messung gasförmiger Immissionen; Bestimmen von Stickstoffmonoxid; Oxidation zu Stickstoffdioxid und Messung nach dem photometrischen Verfahren (Saltzman).)
WITHDRAWN published on 1.1.1974
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Gaseous pollution measurement; measurement of nitrogen dioxide concentration; recording photometric method -MIKOMETER-.
(Messung gasförmiger Immissionen; Messen der Stickstoffdioxid-Konzentration; Registrierendes photometrisches Verfahren; MIKOMETER.)
WITHDRAWN published on 1.1.1974
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Gaseous pollution measurement; measurement of nitrogen dioxide concentration; recording photometric method - IMCOMETER.
(Messung gasförmiger Immissionen; Messen der Stickstoffdioxid-Konzentration; Registrierendes photometrisches Verfahren; IMCOMETER.)
WITHDRAWN published on 1.1.1974
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Gaseous air pollution measurement; measurement of nitrogen monoxide contents; determination of nitrogen dioxide contents by use of a converter; chemiluminescence analyzer monitor labs model 8440.
(Messen gasförmiger Immissionen; Messen von Stickstoffmonoxid-Gehalten; Messen von Stickstoffdioxid-Gehalten unter Verwendung eines Konverters, Chemilumineszenz-Analysator Monitor Labs 8440.)
WITHDRAWN published on 1.12.1979
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Gaseous air pollution measurement; measurement of nitrogen oxide contents; determination of nitrogen dioxide contents by use of a converter; chemiluminescence analyzer bendix model 8101 C.
(Messen gasförmiger Immissionen; Messen von Stickstoffmonoxid-Gehalten; Messen von Stickstoffdioxid-Gehalten unter Verwendung eines Konverters; Chemilumineszenz-Analysator Bendix 8101 C.)
WITHDRAWN published on 1.11.1980
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(MESSUNG GASFOERMIGER IMMISSIONEN; MESSEN DER SCHWEFELWASSER- STOFF-KONZENTRATRION, MOLYBDAENBLAU-IMPINGERVERFAHREN.)
WITHDRAWN published on 1.7.1974
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Measurement of gaseous immissions; measurement of carbon monoxide concentration; infrared absorption method (URAS 1 and 2).
(Messung gasförmiger Immissionen; Messung der Kohlenmonoxid-Konzentration; Ultrarot-Absorptionsverfahren (URAS 1 und 2).)
WITHDRAWN published on 1.8.1970
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Measurement of gaseous immissions; measurement of the carbon monoxide concentration; infrared absorption method (UNOR 2).
(Messung gasförmiger Immissionen; Messung der Kohlenmonoxid-Konzentration; Ultrarot-Absorptionsverfahren (UNOR 2).)
WITHDRAWN published on 1.10.1970
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