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stabilisation. A shutdown period is defined as operation after
reaching minimum shutdown load for stable conditions.
Please note that minimum loads relate to the technical
characteristics of the process unit and not the minimum
environmental requirements of the plant and its auxiliary
systems; emissions can be atypical during these operations,
although not necessarily always higher.
Unplanned shutdown
Non-availability when, due to technical problem(s), the plant
had to be shut down or was not operational when it was
needed. A plant not operating due to unfavourable market
conditions is not considered under unplanned shutdown.
Waste gas
Any gas leaving a process which is not a product (includes
exhaust gas, off-gas and flue-gas).
WWTP
Waste water treatment plant.
95th percentile
The value below which 95 percent of the measurements are
found.
Nm3
Unit of volume at standard conditions – temperature of
273.15 K and pressure of 101325 Pa.
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Workshop draft version EIPPCB/FDM BREF Questionnaire User's Manual