VOC metrology
COV (composés organiques volatils)

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VOC metrology
COV (composés organiques volatils)

Author : Pierre LE CLOIREC

Publication date: October 10, 2004 | Lire en français

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3. VOC metrology

Several approaches [1][28] are possible for identifying and quantifying volatile organic compounds, depending on the complexity of the mixture, the concentration of the molecules involved, and whether a one-off analysis or continuous monitoring of the gaseous emission is required.

3.1 Sampling and point analysis

Figure 4 shows a schematic diagram of VOC analysis. Gas sampling is carried out either in glass ampoules placed under vacuum, or by overpressure in Tedlar bags®. Particular care (cooling, protection from light, etc.) is taken when storing the sample, which must be kept...

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