“康氏残炭”是石油产品中胶状物质和不稳定化合物含量的间接指标。残炭越大,石油产品中不稳定的烃类和胶状物质就越多,生成积炭的倾向和结焦倾向性越大,直接影响石油产品的质量。因此,在测定残炭时要注意:第一,仪器必须按试验步骤规定安装。外铁坩埚底部平铺一层约25毫米的细砂,外铁坩埚的底面与遮焰体的下表面应处在同一水平面,将铁圆罩放置在遮焰体上时,罩底边缘 Conexant Carbon is an indirect indicator of the amount of jelly-like and labile compounds in petroleum products. The larger the residual char, the more unstable hydrocarbons and gels in petroleum products, the greater the propensity to coke and the more agglomeration tendency, which directly affects the quality of petroleum products. Therefore, the determination of residual carbon should pay attention to: First, the instrument must be installed according to the test procedure. The bottom of the outer iron crucible is laid with a layer of fine sand of about 25 mm. The bottom surface of the outer iron crucible should be at the same level as the lower surface of the flame body. When the iron dome is placed on the flame body,