Question

According to the Bureau of Indian Standards, what type of fire extinguisher should be used for fires involving liquefied gases?

Answer 1

CO2  is used in case of fires involving liquefied gases. It is termed as Class B & C fires.  This will help the fire to extinguish by forming a snow.  The weight of the fire extinguisher should be checked constantly and should be refilled if found the loss of gas is more than 10 per cent.  The Bureau of Indian Standards has set a number of rules with regard to this.  The main principle is that a fire extinguisher is available at immediate distance and in plenty.

Answer 2

Well for the fires from the liquefied gases "CO2 fire extinguishers " Should be used 
These types of extinguishers contain the liquid carbon dioxide  which is a non-flammable gas under pressure . Upon releasing this gas makes the form of snow which displace the air or exclude the air from or around fire result in stopping of fire as the oxygen for the fire don't available any more.
Moreover if found hazard due to liquefied flammable gases the dry chemical fire extinguishers can also be used