Water bath Calibration SOP




1.0  OBJECTIVE:
To lay down the calibration procedure of Water bath to provide a system to calibrate, control and maintain the equipment used for inspection measuring and test equipment in order to ensure the correctness of measurement and test status.  
2.0  SCOPE:
This shall be applicable to the Water bath of Quality Control Instrument Laboratory.
3.0  RESPONSIBILITY:
3.1  Technical Assistant/ Helper.
3.2  Q.C Analyst.
4.0  ACCOUNTABILITY:
4.1  Manager-Quality Control.
5.0  MATERIAL AND EQUIPMENT:
5.1  Water bath.
5.2  Calibrated thermometer.
6.0  PROCEDURE:
6.1  Switch “ON” the mains.
6.2  Operate water bath according to the SOP.
6.3  Set the desired temperature against standard thermometer at 37oC, 50oC and 90oC.
6.4  Note the results in the given annexure-1.
6.5  Record the result on the “Calibration Record”, “Calibration Log Book” & paste the “Calibration Status Sticker” on the water bath.
6.6  Frequency:
6.6.1        Calibration after three month.
7.0  REVISION LOG:
Revision No.
Effective Date
Reason
00

New SOP


8.0  REFERENCES:
8.1  Not Applicable.
9.0  ANNEXURES:
Annexure 1: Calibration record of water bath.



Annexure: 1
Calibration record of water bath.
CALIBRATION RECORD OF WATER BATH
Calibration date
Date of last calibration done
Next due for calibration




Instrument details
Instrument name
Instrument make
Instrument identification No.



Location:

Frequency:


Observation Chart
Sr. no.
Standard value
(oC)
Set value
(oC)
Tolerance
Remarks
1.       
37oC

±0.5oC

2.       
50oC

±0.5oC

3.       
90oC

±0.5oC





Remarks: The calibration procedure of instrument is within tolerance limit and gives satisfactory/ not satisfactory results.
Calibration by/date:
Checked by/date:




10.0    ABBREVIATIONS:
Abbreviation
Expanded Form
SOP
Standard operating procedure
&
And
No.
Number  
Ltd.
Limited
Q.C
Quality control
Q.A
Quality assurance
QCEB
Quality control equipment calibration
F
Format
oC
Degree centigrade
DTC
Digital temperature controller


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