Gas chromatography head-space analysis

11 Gas chromatography head-space analysis General remarks (see also Section 2.13) 

The sampler must describe the results of his odour tests at the sampling point. Select the size of flask according to odour intensity. 

Fill 3 glass flasks of equal volumes of the water under investigation. If possible, a further 3 flasks should be filled with the untreated water in addition, as blank tests or for calibration purposes. 

The glass flasks must be absolutely odour-free. 

For each analysis, the same size of flask is to be used for the various 

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