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With decades of experience in industrial markets, we understand the rigorous standards required and the time pressures you face. Our comprehensive range of services, including oil, hydraulic fluid, fuel, transformer, silicon, coolant and gas analysis, are tailored to your specific requirements so you always have the resources available when you most need them.

Thermogravimetric Analysis

Internal combustion in engines produces soot as a result of incomplete fuel combustion. High levels of soot content in oil leads to a higher lubricant viscosity impeding oil flow as well as carbon deposition in the piston ring. It will also affect anti-wear lubricant additives resulting in increased engine wear and premature engine failures. As a result, soot content monitoring is an important parameter for engine oil. An aliquot of sample is weighed in a TGA balance and heated up to 650 °C in a nitrogen environment, to remove all the volatiles and other organic materials. The environment is then changed to oxygen at 650 °C to burn off the soot. The soot content is determined by the difference observed in weight from oxygen switch over until stable weight residue or unchanged weight loss is observed for 5 minutes or longer.