By Antonius Kettrup, Helmut Greim
This is often the 6th quantity in a global sequence of analytical equipment for the selection of toxicants within the air on the office. All tools are trustworthy, reproducable and meet the necessities for caliber control.
The research of the degrees of damaging ingredients within the air inhaled through staff within the chemical and related operating environments is important to observe adherence to statutory focus limits and to guard the employees from the hostile results of such ingredients.
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Additional info for Analyses of Hazardous Substances in Air, Volume 6, 1st Edition
Care was taken that the solution was added to the middle of the tube and that the spiked volume did not exceed 50 µL. The solvent was removed by drawing air through the tube (2 L/min) for about ten minutes. The tubes were then prepared and analysed as described in Sections 3 and 4. Table 2 shows the resulting recovery values. Table 2. Recovery Z. 3 Quantification limit Under the given analytical conditions the quantification limit of the procedure is 25 µg/m3. 5 µg/m3. During sample preparation the collection and control phases are mixed separately each with 3 mL acetonitrile and the substance is extracted from the adsorption material by shaking the tubes for 30 minutes on a laboratory shaker.
Ind. Hyg. Assoc. J. 41: 737±747 25 Passive sampling  Landesumweltamt Nordrhein-Westfalen (Eds) (1998) Validierung von Passivsammlern fçr Immissionsmessungen von Kohlenwasserstoffen. Materialien Nr. 46, Essen  Ikeda M, Koizumi A, Kashora A (1987) Validation of passive dosimetry through biological monitoring and its application in solvent workplaces. In: Berlin A, Brown RH, Saunders KJ (Eds) Diffusive sampling-An alternative approach to workplace air monitoring. The Proceedings of an International Symposium, Luxembourg, 22nd-26th Sept.
Ind. Hyg. Assoc. J. 40: 588± 591  Hangartner M (1988) Passivsammler fçr die Immissionsmessung von Stickstoffdioxid. Drågerheft 368: 6±8  Pannwitz KH (1984) Anzeigende Diffusionsræhrchen. Drågerheft 328: 8±13  Schwarzer S, Plçmke K (1994) Bio-Check F-eignungsgeprçft mit TÛV-CERT-Zertifikat. Drågerheft 358: 9±11  Bundesministerium fçr Arbeit und Sozialordnung (1997) TRGS 402 Ermittlung und Beurteilung der Konzentrationen gefåhrlicher Stoffe in der Luft in Arbeitsbereichen. In: Technische Regeln und Richtlinien des BMA zur Verordnung çber gefåhrliche Stoffe.