SOP
on Cleaning of Stirrer
Objective : To describe cleaning procedure for
stirrer.
Scope : To ensure that
the equipment is clean and free from any starting materials of previous batch
or product residues.
Responsibility : 1.It is the responsibility of
operating staff to clean the equipment.
2. Production Chemist to ensure that
procedure is followed.
Materials &
Equipment :
1.
Cleaning agent: Teepol or liquid soap.
2.
Mops / brush / lint free cloth
Procedure
(1)
Rinse the stirrer with boiled tap water and drain
the washings.
(2)
Prepare a Teepol solution (10ml à 10 liters water)
or liquid-soap (50gm à 5 liters water) and clean the surfaces of rod and propeller by
mopping.
(3)
Wash the surfaces of the rod and propeller by
running tap water for 10 minutes and drain the washings. Repeat the procedure
for another 10 minutes and again drain the washings.
(4)
Wash the surfaces of rod and propeller by using 5
liters of purified water for 5 minutes and drain the washings.
(5)
Finally rinse the rod and propeller with previously
boiled purified water and drain it completely.
(6)
Send the wash water for analysis of residual active
ingredients of previous product.
(7)
Let it dry in air, reassemble the stirrer in tank
and put a label “Cleaned” or “Ready for use”.