Selectivity of Sample Preparation by Micro Carbon Residue Method with Heat Transfer Fluids

In heat transfer fluids, the carbon residue value is an indicator that provides its relative coking tendency. The micro method widely used because of simple and convenient operation procedures low pollution. However, when less than 0.1%, sample needs to be prepared then tested in furnace. Therefore, this article aims at measurement by fluids method. classified according product type maximum allowed temperature. pretreatment. for determining residue, whether pretreatment selective.