Standard Operating Procedure Colorimeter

SCOPE/PURPOSE:

To ensure correct method of operation för Colorimeter

RESPONSIBILITY:

Testing Executive/ Chemists

ACCOUNTABILITY: 

Lab Manager

PROCEDURE:

• 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.

PRECAUTIONS

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

REFERENCES: Instrument Manual