This standard describes the procedure to be followed for determining the mass concentration of ethylene oxide in the atmosphere of workplaces by adsorption on activated carbon, desorption by a solvent and analysis by gas chromatography. The method can be used for both personal sampling and stationary sampling. The upper limit of the method is determined by the adsorption capacity of the activated carbon used. The lower limit of the method is determined. finis ed by a series of restrictions such as the background nois of the detector, the desorption efficiency and the interference of possible other peaks in the gas phase chromatogram 2 PRINCIPLE OF THE METHOD Aspiration of a volume. known air through a tube filled with activated carbon, the ethylene oxide being adsorbed on the activated carbon. Desorption of the ethylene oxide using a suitable solvent Analysis by gas chromatography. of the solution obtained.
NBN T 96-201-1986 history
1986NBN T 96-201-1986 Workplace atmospheres - Determination of ethylene oxide concentration - Activated charcoal adsorption/solvent desorption/gas chromatographic method