ISO 4262-1993
石油产品 残碳的测定 兰姆斯波特姆(Ramsbottom)法(简称“兰氏法”)
Petroleum products; determination of carbon residue; Ramsbottom method
ISO 4262-1993 中，可能用到以下仪器设备
- 适用范围
- The principle of the method specified is weighing a test portion into a glass coking bulb having a capillary opening and placing it in a metal furnace maintained at a temperature of approximately 550 鳦, thus quickly heating the test portion to the point at which all volatile matter is evaporated out of the bulb, while the heavier residue remaining in the bulb undergoes cracking and coking reactions during a specified heating period, removing the bulb, cooling it in a desiccator and weighing again. The method may be used to determine amounts of carbon residues in the range of 0,01 % (m/m) to 30,0 % (m/m), left after evaporation and pyrolysis.