GAS HAZARDS IN THE LABORATORY : As mentioned in the introduction of this unit, the gas hazards in a laboratory arise from LPG and other compressed gases. Though the use of gas for heating purposes in the laboratory is decreasing in the West, in our country it is still quite prevalent. In the following subsection we are going to discuss 'how to make LPG safer' and in the next subsection we shall deal with the hazards and precautions associated with other compressed gases.