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Decommissioning and disposal
15
Decommissioning and disposal
Decommissioning
Flushing the system
28
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious injuries.
Please ensure when handling hazardous substances
that you have read the latest safety data sheets provided
by the manufacture of the hazardous substance. The
actions required are described in the safety data sheet.
Check the safety data sheet regularly and replace, if
necessary, as the hazard potential of a substance can
be re-evaluated at any time based on new findings.
The system operator is responsible for ensuring that
these safety data sheets are available and that they are
kept up to date, as well as for producing an associated
hazard assessment for the workstations affected.
WARNING!
Toxic hydrazine / levoxine can escape
The hydrazine metering system still contains residue of
hydrazine / levoxine.
–
Flush the system with diluting water - see "Flushing
the system".
–
Take appropriate protective measures, referring to
the material safety data sheet provided by the chem‐
ical supplier.
Fig. 7: Flushing the system
1
Stopcock (rinsing water)
2
Pressure reducer (max. 2 bar)
3
Flushing adapter
4
Micro-Matic coupling
5
Hydrazine system
1.
First remove the Micro-Matic coupling from the vessel and place it
on the flushing adapter.
2.
Completely fill the metering vessel with water at least twice and
drain into the dosing tank through the ball valve.
3.
Carefully meter the resulting solution into the process.
The transfer pump could be removed after this.
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