1.0 PURPOSE:
To describe a standard operating procedure (SOP) for performing nutsch filtration.
2.0 SCOPE:
The SOP describes in detail the method of nutsch filtration.
3.0 RESPONSIBILITY:
The responsibility of carrying out nutsch filtration as per the SOP lies with the staff of the rank not lower than operator of the production department.
The responsibility of preparing, reviewing and approving the SOP lies with the Officer (Production), Head of Production and Head of QAD respectively.
4.0 METHOD:
4.1 Arrange a clean nutsch filter bag in the nutsch filter.
4. 2 Arrange hose pipe from vacuum line to nutsch filter receiver.
4. 3 Open the bottom valve of reactor after arranging a hose pipe to the bottom valve of the reactor and the other end of the hose pipe is left in nutsch filter.
4. 4 Allow the wet material to filter through the bag arranged in the nutsch filter.
4. 5 Apply vacuum by opening the valve initially slowly and gradually fully. Close vacuum valve and remove hose pipe.
4. 6 Collect the mother liquors into the drum/reactor.
4.7 Wash the cake with specified solvent and suck dry using vacuum.
4.8 Unload the cake into double poly bags contained in drums and close. Fix label.
5.0 RECORDING:
The nutsch filtration operation will be recorded by the staff of rank not lower than operator in the batch manufacturing sheet.
Nutsch filtration, production