Standard Operating Procedure Colorimeter

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To ensure correct method of operation för Colorimeter

Testing Executive/ Chemists

Lab Manager

Insert mains cable in 230V A. C. outlet.
Switch ON the instrument.
Insert the desired colour filter in the slot provided. Press it fully and ensure that lamp is switch ON perfectly. Wait 1 or 2 minutes.
Remove Test tube from test rube holder, if any
Insert test tube containing black solution.
Set Blank controls judicially to read 000 on display.
Replace the test tube containing the blank solution by test tube containing the unknown solution and note the display reading.
Repeated upper step.

Do not disturb “Zero” and “Blank” controls while measuring the standard/sample solution.

REFERENCES: Instrument Manual

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