On the analysis of diesel cold filter plugging point
Thread Content
During the analysis of the cold filter plugging point of diesel, when filtration is carried out after cooling, the negative pressure used for filtration changes and starts to decrease. I would like to ask whether it is necessary to maintain a constant negative pressure during this process.
Of course, stability must be maintained; the standard specifies 200±1mm, and there’s nothing more to say about it. If the requirement isn’t met, the vacuum control device needs to be adjusted