1.0       Objective

1.1       To describe the procedure for preventive maintenance of Agilent   GC

2.0       Responsibility

• Executive  – Quality Control– To perform the preventive maintenance activity.

• Head Quality- Quality Control  – To ensure compliance against established schedule.

3.0 Procedure

Precautions:

1. Ensure that the power supply power supply to the instrument is switched “off” before starting the preventive maintenance.
2. Clean the instrument with a clean dry cloth every day.

3.1 Performance checks shall be done for the following parameters before doing preventive maintenance

• 3.1.1 Flow accuracy

• 3.1.2 Retention Time Reproducibility

• 3.1.3 Area Ratio Reproducibility

• 3.1.4 Oven Temperature

• 3.2 Enter the values in standard maintenance card as per sop

      The following components of GC shall be subjected for preventive maintenance on the schedule date.

• 3.3 GAS CHROMATOGRAPH

• 3.3.1 Instrument shall be cleaned from dust with a blower

• 3.3.2 External gas leaks shall be checked with soap solution , all valves shall be tighten in case any leaks found.

• 3.3.3 Clean the injector port liner and change the septum

• 3.3.4 Clean the detector parts with DMA

• 3.4 HEAD SPACE

• 3.4.1 Clean the system from dust

• 3.4.2 Clean the HSS needle or change as and when required.

• 3.4.3 Check the status of rotor and stator of the HSS valve (sampling)

• 3.4.4 Check the contamination of transfer line.

• 3.4.5 Perform stream cleaning of HSS.

• 3.5 Enter the performance checks and preventive maintenance checks in standard maintenance card as per SOP
• 3.5.1 Stick the under preventive maintenance label during performing

• 3.5.2 Enter the preventive maintenance status details as per SOP Preventive Maintenance Programme for Laboratory Instruments..

• 3.5.3 Frequency of schedule is every 3 months.

• 4.0 ABBREVATIONS

• SOP  – Standard Operating Procedure

• NMT – Not More Than

• % RSD – Percentage Relative standard deviation

• 5.0 REFERENCES

• Calibration of gas chromatograph

• Preventive Maintenance Programme for Laboratory Instruments.

• 6.0 ANNEX URES

Nil

• Uncategorized