This standard specifies a method for the determination of soot content in engine oil in use using spectrophotometry. This standard is suitable for evaluating the soot content in engine oils in use. It is usually suitable for measuring the soot content in engines with relatively high soot content (the soot content range for the precis on test of this standard is 2.78%~6.89%, see Chapter 16). Oil.
NB/SH/T 0891-2014 history
2014NB/SH/T 0891-2014 Spectrophotometric detection of soot in used engine oil samples