Preventive Maintenance of Gas Chromatograph (Agilent)


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

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