PROCEDURE
A. For Gas Supply
Visit the LPG gas store room 1 cracking plant along with your counsellor or the lab in charge' and note the way supply of gas is regulated. It may not be obvious; have discussion with the counsellor.
Note the provisions for ventilation. Why do we need ventilation?
Follow the supply line into the lab; note the colour of the pipeline.
In the lab, continue tracking the gas supply to different work-benches, fume cupboard, preparation room etc. Do not fail to mark the control points/distribution points.
Check the condition of rubber tubing; look for the cracks, if any.
Check the burner knobs for smoothness of operation.
Discuss with your counsellor the possible hazards associated with gas supply and measures to be followed in case of an eventuality.
B. For Electricity Supply
Locate the mains for electricity supply along with your counsellor or lab incharge.
Follow the route of supply through wires to the lab keeping in mind the control points etc. Do you see any specific colour for the pipes carrying electrical wires?
Locate the switch boards. Check carefully the positioning of the switch boards on the work benches. These should be far away from water taps to prevent any short circuit due to sprinkling of water on the switch boards or sockets.
Check all the switches for their proper functioning.
Check the condition of the sockets and cable/wire. See if there are any cracks in the sockets and bare wires.
C. For Water Supply
Locate the main water supply pipe line and study its distribution to different work benches, fume cupboard, water distillatory plant and washing sinks etc. carefully observing the control points. Note the colour of water pipes, if any.
Check the connections between the water pipes. See if there is any leakage in the joints.
Check for the working condition of the taps present in work bench sinks and fume cupboard sinks etc.
Look for the provisions of a continuous water supply in the lab.
Draw schematic diagrams showing gas, electricity and water supply to the lab you have visited.