WEBVTT
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This is a drum filling system for organic liquids.
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First the filling capacity is adjusted.
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The drum is transported to the working area
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using a powered roller conveyor.
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Before filling the drum is appropriately earthed
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and positioned accurately.
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Filling is started.
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On the left side the local exhaust ventilation
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is deactivated. On the right side it is activated.
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If the local exhaust ventilation is deactivated,
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vapours leak in the working area,
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shown by the red arrows on the left side.
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Green arrows on the right side show
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that the vapours are collected adequately
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when the local exhaust ventilation is activated.
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The meter display in the diagram shows the release
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of the vapour that is escaping.
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Variability of the vapour concentration can be caused
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by airflow in the working area.
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After filling the fill pipe is pulled out and dripped off
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into the drum while local exhaust ventilation is working.
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The green signal demonstrates the efficiency of a
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sufficient working local exhaust ventilation.
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Workers' exposure is minimised due to correct handling.
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The drum is closed immediately using an appropriate tool.