Hot air oven Calibration SOP

1.0  OBJECTIVE:

To lay down the calibration procedure of Hot air oven 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 Hot air oven 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  Hot air oven.

5.2  Calibrated thermometer.

6.0  PROCEDURE:

6.1  Operate the Hot air oven according to the SOP.

6.2  For the calibration of hot air oven use a standard thermometer ranging up to 300^oC.

6.3  Start the calibration procedure after 1 hour of starting the oven.

6.4  Set the oven at desired temperature.

6.5  Put the standard thermometer for 30 min in upper shelf of hot air oven and close the door of it.

6.6  After 30 min open the door of hot air oven and read the temperature of standard thermometer randomly and match the observed temperature of thermometer.

6.7  Repeat the above procedure by putting the thermometer in lower shelf for 30 min.

6.8  Record the observed temperature in calibration record of hot air oven as per annexure-1.

6.9  The observed temperature of thermometer in both shelves should be ±2.0^oC tolerance limit to the set temperature value.

6.10    Record the result on the “Calibration Record”, “Calibration Log Book” & paste the “Calibration Status Sticker” on Hot air Oven.

6.11    Frequency:

6.11.1    Once in a 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 Hot air oven.

Annexure: 1

Calibration record of Hot air oven.

Calibration record of Hot air oven. Calibration date Date of last calibration done Next due for calibration Instrument details Instrument name Instrument make Instrument identification No. Location: Frequency: Observation Chart Location Set temperature Observed temperature Tolerance Observed by Upper shelf ±2.0oC Lower shelf ±2.0oC 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
BM	Bio-Mark
QCEB	Quality control equipment calibration
F	Format
oC	Degree centigrade
min	Minutes