Survey in advance
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Properties of exhaust gas
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Measuring position and shape of duct
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Safety of work
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Presence of power source and water supply
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Preparation for devices
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Purification of filter paper and absorbent
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Setting of uniform velocity absorption quantity
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Assembly of sampling instrument
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Specimen sampling
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Adjustment of absorption quantity at every 60 minutes
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Replacement of filter paper (together with the holder) if necessary.
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Conservation/
transportation
of
specimen
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Conservation of filter papers
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Intensification and conservation of captured liquid
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The column shall be sealed for the absorbent, and the absorbent shall be conserved in the light shielded status.
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Washing of nozzles and conduits, and collection and conservation of washing liquid.
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