Flash Point :
Test method used: ASTM D- 93A: 2010
Flash Point is the temperature at which the oil gives off so much of vapour that this vapour, when mixed with air, forms an ignitable mixture and gives a momentary flash on application of pilot flame under the prescribed conditions. Flash Point is the indication of presence of volatile combustible products, low molecular weight hydrocarbons in the insulating oil. Flash Point of transformer oil is expressed in 0C.